Common Weakness Enumeration

CWE-502

Allowed

Deserialization of Untrusted Data

Abstraction: Base · Status: Draft

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

6014 vulnerabilities reference this CWE, most recent first.

GHSA-9XFQ-8J3R-XP5G

Vulnerability from github – Published: 2023-09-28 06:30 – Updated: 2026-01-22 20:44
Withdrawn 2026-01-22 VLAI
Summary
Duplicate Advisory: Consensys gnark-crypto allows Signature Malleability
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-fr8m-434r-g3xp. This link is maintained to preserve external references.

Original Description

Consensys gnark-crypto through 0.11.2 allows Signature Malleability. This occurs because deserialisation of EdDSA and ECDSA signatures does not ensure that the data is in a certain interval.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/Consensys/gnark-crypto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/consensys/gnark-crypto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.12.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-09-28T16:42:58Z",
    "nvd_published_at": "2023-09-28T04:15:12Z",
    "severity": "CRITICAL"
  },
  "details": "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-fr8m-434r-g3xp. This link is maintained to preserve external references.\n\n## Original Description\nConsensys gnark-crypto through 0.11.2 allows Signature Malleability. This occurs because deserialisation of EdDSA and ECDSA signatures does not ensure that the data is in a certain interval.",
  "id": "GHSA-9xfq-8j3r-xp5g",
  "modified": "2026-01-22T20:44:23Z",
  "published": "2023-09-28T06:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44273"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Consensys/gnark-crypto/pull/449"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Consensys/gnark-crypto"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Consensys/gnark-crypto/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Consensys/gnark-crypto/releases/tag/v0.12.0"
    },
    {
      "type": "WEB",
      "url": "https://verichains.io"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: Consensys gnark-crypto allows Signature Malleability",
  "withdrawn": "2026-01-22T20:44:23Z"
}

GHSA-9XHJ-2FCR-X9J8

Vulnerability from github – Published: 2026-10-20 12:31 – Updated: 2026-10-20 12:31
VLAI
Details

DokuWiki before 2026-07-14c contains a PHP object injection vulnerability in Draft::getDraftText() that passes draft file contents to unserialize() without restricting allowed classes. Authenticated users with edit rights can race concurrent draft rewrites to splice serialized data, instantiating gadgets like MemoryIndex or Installer for arbitrary file write, deletion, and code execution.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-113356"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-20T11:17:20Z",
    "severity": "HIGH"
  },
  "details": "DokuWiki before 2026-07-14c contains a PHP object injection vulnerability in Draft::getDraftText() that passes draft file contents to unserialize() without restricting allowed classes. Authenticated users with edit rights can race concurrent draft rewrites to splice serialized data, instantiating gadgets like MemoryIndex or Installer for arbitrary file write, deletion, and code execution.",
  "id": "GHSA-9xhj-2fcr-x9j8",
  "modified": "2026-10-20T12:31:35Z",
  "published": "2026-10-20T12:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113356"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dokuwiki/dokuwiki/issues/4752"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dokuwiki/dokuwiki/commit/1531802afb2ac3eea147a887600fa5750e74e681"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/sebastianosrt/a0c0252ca335e8e8b2c96fecf1f64538"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dokuwiki/dokuwiki/blob/b61db59a8091fc992ac02959a9a09b576cc43ce0/inc/Draft.php#L122"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dokuwiki/dokuwiki/releases/tag/release-2026-07-14c"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/dokuwiki-before-2026-07-14c-php-object-injection-via-draft-race-condition"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-9XM7-6Q66-G534

Vulnerability from github – Published: 2026-09-09 18:32 – Updated: 2026-09-09 18:32
VLAI
Details

A flaw was found in the memcached cache plugin of the community.general Ansible collection. Although its documentation states that records are stored in JSON format, the plugin performs no explicit serialization and relies on python-memcached, which pickles values on write and unpickles them on read. Because memcached is unauthenticated and cache keys are predictable, an attacker able to reach a network-exposed or shared memcached instance can write a crafted pickle payload that is deserialized and executed on the Ansible controller when the poisoned fact cache is next read, leading to remote code execution.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-87874"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T17:17:53Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in the memcached cache plugin of the community.general Ansible\ncollection. Although its documentation states that records are stored in JSON\nformat, the plugin performs no explicit serialization and relies on\npython-memcached, which pickles values on write and unpickles them on read.\nBecause memcached is unauthenticated and cache keys are predictable, an attacker\nable to reach a network-exposed or shared memcached instance can write a crafted\npickle payload that is deserialized and executed on the Ansible controller when\nthe poisoned fact cache is next read, leading to remote code execution.",
  "id": "GHSA-9xm7-6q66-g534",
  "modified": "2026-09-09T18:32:05Z",
  "published": "2026-09-09T18:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87874"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-87874"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530995"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-9XQJ-Q8C2-2HVG

Vulnerability from github – Published: 2026-03-05 06:30 – Updated: 2026-03-09 15:30
VLAI
Details

Deserialization of Untrusted Data vulnerability in blubrry PowerPress Podcasting powerpress allows Object Injection.This issue affects PowerPress Podcasting: from n/a through <= 11.15.10.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-23798"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-05T06:16:22Z",
    "severity": "HIGH"
  },
  "details": "Deserialization of Untrusted Data vulnerability in blubrry PowerPress Podcasting powerpress allows Object Injection.This issue affects PowerPress Podcasting: from n/a through \u003c= 11.15.10.",
  "id": "GHSA-9xqj-q8c2-2hvg",
  "modified": "2026-03-09T15:30:32Z",
  "published": "2026-03-05T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23798"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/Wordpress/Plugin/powerpress/vulnerability/wordpress-powerpress-podcasting-plugin-11-15-10-php-object-injection-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-C265-37VJ-CWCC

Vulnerability from github – Published: 2020-06-18 14:44 – Updated: 2026-05-06 18:37
VLAI
Summary
Deserialization of untrusted data in Jackson Databind
Details

FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to com.sun.org.apache.xalan.internal.lib.sql.JNDIConnectionPool (aka xalan2).

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.9.10.4"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "com.fasterxml.jackson.core:jackson-databind"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.9.0"
            },
            {
              "fixed": "2.9.10.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-14062"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-18T13:06:04Z",
    "nvd_published_at": "2020-06-14T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "FasterXML jackson-databind 2.x before 2.9.10.5 mishandles the interaction between serialization gadgets and typing, related to com.sun.org.apache.xalan.internal.lib.sql.JNDIConnectionPool (aka xalan2).",
  "id": "GHSA-c265-37vj-cwcc",
  "modified": "2026-05-06T18:37:27Z",
  "published": "2020-06-18T14:44:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14062"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-databind/issues/2704"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-databind/commit/840eae2ca81c597a0010b2126f32dce17d384b70"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-databind/commit/99001cdb6807b5c7b170ec6a9092ecbb618ae79c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/FasterXML/jackson-databind"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/%40cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20200702-0003"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-JAVA-COMFASTERXMLJACKSONCORE-570625"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Deserialization of untrusted data in Jackson Databind"
}

GHSA-C27H-MCMW-48HV

Vulnerability from github – Published: 2022-05-24 16:57 – Updated: 2023-02-14 00:56
VLAI
Summary
Deserialization of Untrusted Data in org.codehaus.jackson:jackson-mapper-asl
Details

A series of deserialization vulnerabilities have been discovered in Codehaus 1.9.x implemented in EAP 7. This CVE fixes CVE-2017-17485, CVE-2017-7525, CVE-2017-15095, CVE-2018-5968, CVE-2018-7489, CVE-2018-1000873, CVE-2019-12086 reported for FasterXML jackson-databind by implementing a whitelist approach that will mitigate these vulnerabilities and future ones alike.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.codehaus.jackson:jackson-mapper-asl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.9.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-10202"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-14T00:56:25Z",
    "nvd_published_at": "2019-10-01T15:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "A series of deserialization vulnerabilities have been discovered in Codehaus 1.9.x implemented in EAP 7. This CVE fixes CVE-2017-17485, CVE-2017-7525, CVE-2017-15095, CVE-2018-5968, CVE-2018-7489, CVE-2018-1000873, CVE-2019-12086 reported for FasterXML jackson-databind by implementing a whitelist approach that will mitigate these vulnerabilities and future ones alike.",
  "id": "GHSA-c27h-mcmw-48hv",
  "modified": "2023-02-14T00:56:25Z",
  "published": "2022-05-24T16:57:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10202"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/refea6018a2c4e9eb7838cab567ed219c3f726dcd83a5472fbb80d8d9@%3Cissues.flume.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/refea6018a2c4e9eb7838cab567ed219c3f726dcd83a5472fbb80d8d9%40%3Cissues.flume.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rce00a1c60f7df4b10e72fa87827c102f55b074bb91993631df2c21f9@%3Cdev.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rce00a1c60f7df4b10e72fa87827c102f55b074bb91993631df2c21f9%40%3Cdev.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r6dea2a887f5eb1d68f124d64b14cd1a04f682f06de8cd01b7e4214e0@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r6dea2a887f5eb1d68f124d64b14cd1a04f682f06de8cd01b7e4214e0%40%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r5f16a1bd31a7e94ca78eda686179930781aa3a4a990cd55986703581@%3Cdev.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r5f16a1bd31a7e94ca78eda686179930781aa3a4a990cd55986703581%40%3Cdev.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r500867b74f42230a3d65b8aec31fc93ac390eeae737c91a759ab94cb@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r500867b74f42230a3d65b8aec31fc93ac390eeae737c91a759ab94cb%40%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r356592d9874ab4bc9da4754592f8aa6edc894c95e17e58484bc2af7a@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r356592d9874ab4bc9da4754592f8aa6edc894c95e17e58484bc2af7a%40%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r1edabcfacdad42d3c830464e9cf07a9a489059a7b7a8642cf055542d@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r1edabcfacdad42d3c830464e9cf07a9a489059a7b7a8642cf055542d%40%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r0fbf2c60967bc9f73d7f5a62ad3b955789f9a14b950f42e99fca9b4e@%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r0fbf2c60967bc9f73d7f5a62ad3b955789f9a14b950f42e99fca9b4e%40%3Cissues.hive.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10202"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Deserialization of Untrusted Data in org.codehaus.jackson:jackson-mapper-asl"
}

GHSA-C27M-942F-RCFH

Vulnerability from github – Published: 2026-10-13 20:52 – Updated: 2026-10-19 19:19
VLAI
Summary
Microsoft Security Advisory CVE-2026-87697 - .NET and Visual Studio Remote Code Execution Vulnerability
Details

Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.WindowsDesktop.App.Runtime (WPF). This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

WPF XPS synthetic hyperlinks exposed through UI Automation can bypass restrictive navigation checks and reach attacker-controlled content, enabling remote code execution after user interaction.

Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/471

CVSS Details

  • Version: 3.1
  • Severity: High
  • Score: 8.8
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

  • Weakness: CWE-502 (Deserialization of Untrusted Data)

Affected Platforms

  • Platforms: Windows
  • Architectures: All

Affected Packages

The vulnerability affects Microsoft .NET projects that use an affected package version listed below.

Package name Affected version Patched version
Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12 10.0.13

Advisory FAQ

How do I know if I am affected?

If using a package listed in affected packages, you're exposed to the vulnerability.

How do I fix the issue?

  1. To fix the issue please install the latest version of .NET. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.
  2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the dotnet --info command.

Once you have installed the updated runtime or SDK, restart your apps for the update to take effect.

Additionally, if you've deployed self-contained applications targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.

Other Information

Reporting Security Issues

If you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the MSRC Researcher Portal. Further information can be found in the MSRC Report an Issue FAQ.

Security reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.

Support

You can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.

Disclaimer

The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

External Links

CVE-2026-87697

Acknowledgements

  • 41ae55e9310ff27fa6f26af4727e5590

Revisions

V1.0 (10/13/2026): Advisory published.

Show details on source website

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.0.20"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-arm64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.0.21"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.0.20"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.0.21"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.0.20"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x86"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.0.21"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.0.31"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-arm64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.0.32"
            }
          ],
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        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.0.31"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
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              "fixed": "8.0.32"
            }
          ],
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      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 8.0.31"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x86"
      },
      "ranges": [
        {
          "events": [
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            }
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      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 11.0.0-rc.1"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-arm64"
      },
      "ranges": [
        {
          "events": [
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              "introduced": "11.0.0-preview.1"
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              "fixed": "11.0.0-rc.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
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    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 11.0.0-rc.1"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "11.0.0-preview.1"
            },
            {
              "fixed": "11.0.0-rc.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 11.0.0-rc.1"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x86"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "11.0.0-preview.1"
            },
            {
              "fixed": "11.0.0-rc.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.12"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-arm64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.12"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.12"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.WindowsDesktop.App.Runtime.win-x86"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-87697"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-13T20:52:24Z",
    "nvd_published_at": "2026-10-13T19:21:22Z",
    "severity": "HIGH"
  },
  "details": "## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.WindowsDesktop.App.Runtime (WPF). This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nWPF XPS synthetic hyperlinks exposed through UI Automation can bypass restrictive navigation checks and reach attacker-controlled content, enabling remote code execution after user interaction.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/471\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 8.8\n- **Vector:** `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`\n\n- **Weakness:** CWE-502 (Deserialization of Untrusted Data)\n## Affected Platforms\n\n- **Platforms:** Windows\n- **Architectures:** All\n\n## \u003ca name=\"affected-packages\"\u003e\u003c/a\u003eAffected Packages\n\nThe vulnerability affects Microsoft .NET projects that use an affected package version listed below.\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | ---------------\n[Microsoft.WindowsDesktop.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.WindowsDesktop.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.WindowsDesktop.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x86) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.WindowsDesktop.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.WindowsDesktop.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.WindowsDesktop.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x86) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.WindowsDesktop.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.WindowsDesktop.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.WindowsDesktop.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x86) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.WindowsDesktop.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.WindowsDesktop.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.WindowsDesktop.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-x86) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n\n## Advisory FAQ\n\n### \u003ca name=\"how-affected\"\u003e\u003c/a\u003eHow do I know if I am affected?\n\nIf using a package listed in [affected packages](#affected-packages), you\u0027re exposed to the vulnerability.\n\n### \u003ca name=\"how-fix\"\u003e\u003c/a\u003eHow do I fix the issue?\n\n1. To fix the issue please install the latest version of .NET. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.\n2. If your application references the vulnerable package, update the package reference to the patched version. You can list the versions you have installed by running the `dotnet --info` command.\n\nOnce you have installed the updated runtime or SDK, restart your apps for the update to take effect.\n\nAdditionally, if you\u0027ve deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in a supported version of .NET, please report it to the Microsoft Security Response Center (MSRC) via the [MSRC Researcher Portal](https://msrc.microsoft.com/report/vulnerability/new). Further information can be found in the MSRC [Report an Issue FAQ](https://www.microsoft.com/msrc/faqs-report-an-issue).\n\nSecurity reports made through MSRC may qualify for the Microsoft .NET Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2026-87697](https://www.cve.org/CVERecord?id=CVE-2026-87697)\n\n### Acknowledgements\n\n- 41ae55e9310ff27fa6f26af4727e5590\n\n### Revisions\n\nV1.0 (10/13/2026): Advisory published.",
  "id": "GHSA-c27m-942f-rcfh",
  "modified": "2026-10-19T19:19:47Z",
  "published": "2026-10-13T20:52:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/wpf/security/advisories/GHSA-c27m-942f-rcfh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87697"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/announcements/issues/471"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/wpf/issues/12021"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/wpf"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87697"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Microsoft Security Advisory CVE-2026-87697 - .NET and Visual Studio Remote Code Execution Vulnerability"
}

GHSA-C27W-WJ98-H63P

Vulnerability from github – Published: 2025-03-26 12:30 – Updated: 2025-03-26 12:30
VLAI
Details

The WordPress Importer plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 0.8.3 via deserialization of untrusted input in the 'maybe_unserialize' function. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-13889"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-26T12:15:14Z",
    "severity": "HIGH"
  },
  "details": "The WordPress Importer plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 0.8.3 via deserialization of untrusted input in the \u0027maybe_unserialize\u0027 function. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.",
  "id": "GHSA-c27w-wj98-h63p",
  "modified": "2025-03-26T12:30:34Z",
  "published": "2025-03-26T12:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-13889"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/class-wp-import.php#L602"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/class-wp-import.php#L857"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/class-wp-import.php#L891"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/class-wp-import.php#L975"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3261419"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5f0795f7-6eba-4ff0-b0da-5d2b544adf14?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-C29G-Q3H3-MWCF

Vulnerability from github – Published: 2023-06-07 21:30 – Updated: 2023-06-16 17:47
VLAI
Summary
xxl-rpc deserialization vulnerability
Details

xxl-rpc v1.7.0 was discovered to contain a deserialization vulnerability via the component com.xxl.rpc.core.remoting.net.impl.netty.codec.NettyDecode#decode.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.xuxueli:xxl-rpc-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-33496"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-09T22:52:46Z",
    "nvd_published_at": "2023-06-07T21:15:13Z",
    "severity": "CRITICAL"
  },
  "details": "xxl-rpc v1.7.0 was discovered to contain a deserialization vulnerability via the component `com.xxl.rpc.core.remoting.net.impl.netty.codec.NettyDecode#decode`.",
  "id": "GHSA-c29g-q3h3-mwcf",
  "modified": "2023-06-16T17:47:39Z",
  "published": "2023-06-07T21:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33496"
    },
    {
      "type": "WEB",
      "url": "https://github.com/edirc-wong/record/blob/main/deserialization_vulnerability_report.md"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xuxueli/xxl-rpc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "xxl-rpc deserialization vulnerability"
}

GHSA-C2J6-7H49-7VRF

Vulnerability from github – Published: 2024-10-28 12:30 – Updated: 2026-04-01 18:32
VLAI
Details

Deserialization of Untrusted Data vulnerability in Kiboko Labs Namaste! LMS allows Object Injection.This issue affects Namaste! LMS: from n/a through 2.6.3.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-50408"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502",
      "CWE-89"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-28T12:15:15Z",
    "severity": "HIGH"
  },
  "details": "Deserialization of Untrusted Data vulnerability in Kiboko Labs Namaste! LMS allows Object Injection.This issue affects Namaste! LMS: from n/a through 2.6.3.",
  "id": "GHSA-c2j6-7h49-7vrf",
  "modified": "2026-04-01T18:32:09Z",
  "published": "2024-10-28T12:30:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50408"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/Wordpress/Plugin/namaste-lms/vulnerability/wordpress-namaste-lms-plugin-2-6-3-php-object-injection-vulnerability?_s_id=cve"
    },
    {
      "type": "WEB",
      "url": "https://patchstack.com/database/vulnerability/namaste-lms/wordpress-namaste-lms-plugin-2-6-3-php-object-injection-vulnerability?_s_id=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Architecture and Design Implementation

If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.

Mitigation
Implementation

When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.

Mitigation
Implementation

Explicitly define a final object() to prevent deserialization.

Mitigation
Architecture and Design Implementation
  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Implementation

Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.

Mitigation
Architecture and Design Implementation

Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.

Mitigation MIT-29
Operation

Strategy: Firewall

Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].

CAPEC-586: Object Injection

An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.