Common Weakness Enumeration

CWE-59

Allowed

Improper Link Resolution Before File Access ('Link Following')

Abstraction: Base · Status: Draft

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

2435 vulnerabilities reference this CWE, most recent first.

GHSA-W546-43X5-C5VQ

Vulnerability from github – Published: 2022-05-17 03:27 – Updated: 2022-05-17 03:27
VLAI
Details

The abrt-action-install-debuginfo-to-abrt-cache help program in Automatic Bug Reporting Tool (ABRT) before 2.7.1 allows local users to write to arbitrary files via a symlink attack on unpacked.cpio in a pre-created directory with a predictable name in /var/tmp.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2015-5273"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2015-12-07T18:59:00Z",
    "severity": "LOW"
  },
  "details": "The abrt-action-install-debuginfo-to-abrt-cache help program in Automatic Bug Reporting Tool (ABRT) before 2.7.1 allows local users to write to arbitrary files via a symlink attack on unpacked.cpio in a pre-created directory with a predictable name in /var/tmp.",
  "id": "GHSA-w546-43x5-c5vq",
  "modified": "2022-05-17T03:27:19Z",
  "published": "2022-05-17T03:27:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-5273"
    },
    {
      "type": "WEB",
      "url": "https://github.com/abrt/abrt/commit/50ee8130fb4cd4ef1af7682a2c85dd99cb99424e"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2015:2505"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2015-5273"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1262252"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172809.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2015-2505.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2015/12/01/1"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/78113"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-W5CM-4VRF-93H3

Vulnerability from github – Published: 2026-09-08 18:32 – Updated: 2026-09-08 18:32
VLAI
Details

Improper link resolution before file access ('link following') in Windows NTFS allows an authorized attacker to perform tampering locally.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-69425"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-08T18:19:05Z",
    "severity": "MODERATE"
  },
  "details": "Improper link resolution before file access (\u0027link following\u0027) in Windows NTFS allows an authorized attacker to perform tampering locally.",
  "id": "GHSA-w5cm-4vrf-93h3",
  "modified": "2026-09-08T18:32:33Z",
  "published": "2026-09-08T18:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69425"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69425"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W5F5-QH6W-MQX9

Vulnerability from github – Published: 2022-05-01 02:02 – Updated: 2024-01-26 18:30
VLAI
Details

LutelWall 0.97 and earlier allows local users to overwrite arbitrary files via a symlink attack on a temporary file created by a system call to wget.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2005-1879"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2005-06-09T04:00:00Z",
    "severity": "LOW"
  },
  "details": "LutelWall 0.97 and earlier allows local users to overwrite arbitrary files via a symlink attack on a temporary file created by a system call to wget.",
  "id": "GHSA-w5f5-qh6w-mqx9",
  "modified": "2024-01-26T18:30:30Z",
  "published": "2022-05-01T02:02:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2005-1879"
    },
    {
      "type": "WEB",
      "url": "http://firewall.lutel.pl/download/0.98/ChangeLog"
    },
    {
      "type": "WEB",
      "url": "http://lists.grok.org.uk/pipermail/full-disclosure/2005-June/034424.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/15647"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/15665"
    },
    {
      "type": "WEB",
      "url": "http://security.gentoo.org/glsa/glsa-200506-10.xml"
    },
    {
      "type": "WEB",
      "url": "http://securitytracker.com/id?1014112"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/13863"
    },
    {
      "type": "WEB",
      "url": "http://www.zataz.net/adviso/lutelwall-05222005.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W5W4-523J-QM3V

Vulnerability from github – Published: 2022-05-24 17:07 – Updated: 2022-11-10 12:01
VLAI
Details

UNIX Symbolic Link (Symlink) Following vulnerability in the trousers package of SUSE SUSE Linux Enterprise Server 15 SP1; openSUSE Factory allowed local attackers escalate privileges from user tss to root. This issue affects: SUSE SUSE Linux Enterprise Server 15 SP1 trousers versions prior to 0.3.14-6.3.1. openSUSE Factory trousers versions prior to 0.3.14-7.1.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-18898"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-01-23T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "UNIX Symbolic Link (Symlink) Following vulnerability in the trousers package of SUSE SUSE Linux Enterprise Server 15 SP1; openSUSE Factory allowed local attackers escalate privileges from user tss to root. This issue affects: SUSE SUSE Linux Enterprise Server 15 SP1 trousers versions prior to 0.3.14-6.3.1. openSUSE Factory trousers versions prior to 0.3.14-7.1.",
  "id": "GHSA-w5w4-523j-qm3v",
  "modified": "2022-11-10T12:01:04Z",
  "published": "2022-05-24T17:07:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18898"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1157651"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00066.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W64X-6GX5-C298

Vulnerability from github – Published: 2025-12-23 00:30 – Updated: 2025-12-23 00:30
VLAI
Details

Zillya Total Security 3.0.2367.0 contains a privilege escalation vulnerability that allows low-privileged users to copy files to unauthorized system locations using the quarantine module. Attackers can leverage symbolic link techniques to restore quarantined files to restricted directories, potentially enabling system-level access through techniques like DLL hijacking.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-53973"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-266",
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-22T22:16:02Z",
    "severity": "HIGH"
  },
  "details": "Zillya Total Security 3.0.2367.0 contains a privilege escalation vulnerability that allows low-privileged users to copy files to unauthorized system locations using the quarantine module. Attackers can leverage symbolic link techniques to restore quarantined files to restricted directories, potentially enabling system-level access through techniques like DLL hijacking.",
  "id": "GHSA-w64x-6gx5-c298",
  "modified": "2025-12-23T00:30:31Z",
  "published": "2025-12-23T00:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53973"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/51151"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/zillya-total-security-local-privilege-escalation-via-quarantine-module"
    },
    {
      "type": "WEB",
      "url": "https://zillya.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/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-W65X-HPV6-VV6V

Vulnerability from github – Published: 2026-02-12 00:31 – Updated: 2026-02-12 15:32
VLAI
Details

This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-20610"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-11T23:16:04Z",
    "severity": "HIGH"
  },
  "details": "This issue was addressed with improved handling of symlinks. This issue is fixed in macOS Tahoe 26.3. An app may be able to gain root privileges.",
  "id": "GHSA-w65x-hpv6-vv6v",
  "modified": "2026-02-12T15:32:46Z",
  "published": "2026-02-12T00:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20610"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/126348"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W6R4-XFW9-67G6

Vulnerability from github – Published: 2026-07-21 21:32 – Updated: 2026-07-23 15:30
VLAI
Details

Data::Intern::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.

The segment is created in intern.h with open(path, O_RDWR|O_CREAT, 0666). The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.

A "Shared" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted file or symlink at the path lets a local attacker win a pre-creation race or redirect the open.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-65067"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-21T20:17:05Z",
    "severity": "LOW"
  },
  "details": "Data::Intern::Shared versions before 0.02 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.\n\nThe segment is created in intern.h with open(path, O_RDWR|O_CREAT, 0666). The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.\n\nA \"Shared\" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted file or symlink at the path lets a local attacker win a pre-creation race or redirect the open.",
  "id": "GHSA-w6r4-xfw9-67g6",
  "modified": "2026-07-23T15:30:36Z",
  "published": "2026-07-21T21:32:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65067"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/EGOR/Data-Intern-Shared-0.02/changes"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/EGOR/Data-Intern-Shared-0.02/diff/EGOR/Data-Intern-Shared-0.01#intern.h"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W6RC-Q387-VPGQ

Vulnerability from github – Published: 2017-10-24 18:33 – Updated: 2023-06-09 20:17
VLAI
Summary
insecure temporary directory usage in passenger
Details

ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership of arbitrary directories via a symlink attack on a directory with a predictable name in /tmp/.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "passenger"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2013-4136"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T20:49:27Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "ext/common/ServerInstanceDir.h in Phusion Passenger gem before 4.0.6 for Ruby allows local users to gain privileges or possibly change the ownership of arbitrary directories via a symlink attack on a directory with a predictable name in /tmp/.",
  "id": "GHSA-w6rc-q387-vpgq",
  "modified": "2023-06-09T20:17:24Z",
  "published": "2017-10-24T18:33:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4136"
    },
    {
      "type": "WEB",
      "url": "https://github.com/phusion/passenger/commit/5483b3292cc2af1c83033eaaadec20dba4dcfd9b"
    },
    {
      "type": "WEB",
      "url": "https://code.google.com/p/phusion-passenger/issues/detail?id=910"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-w6rc-q387-vpgq"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/phusion/passenger"
    },
    {
      "type": "WEB",
      "url": "https://github.com/phusion/passenger/blob/release-4.0.6/NEWS"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2013-4136.yml"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2013-1136.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2013/07/16/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "insecure temporary directory usage in passenger"
}

GHSA-W6WH-P4G7-MPJ2

Vulnerability from github – Published: 2026-10-13 20:51 – Updated: 2026-10-13 20:51
VLAI
Summary
Microsoft Security Advisory CVE-2026-96225 - .NET and Visual Studio Elevation of Privilege Vulnerability
Details

Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.NETCore.App.Runtime; System.Private.CoreLib. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

Unix named-mutex and shared-memory paths can be manipulated through insecure global directories, symlink races, and unsafe permission changes, allowing local attackers to truncate or overwrite files, widen directory permissions, or elevate privileges.

Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/476

CVSS Details

  • Version: 3.1
  • Severity: High
  • Score: 7.8
  • Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Weakness: CWE-59 (Improper Link Resolution Before File Access ('Link Following'))

Affected Platforms

  • Platforms: Linux, macOS
  • 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.NETCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31 8.0.32
Microsoft.NETCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12 10.0.13
Microsoft.NETCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1 11.0.0-rc.2
Microsoft.NETCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20 9.0.21
Microsoft.NETCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20 9.0.21

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-2026-96225

Acknowledgements

  • Weeraphat Srisutham
  • Ky0toFu (@ky0tofu)
  • Leandro Batista
  • Kevin Schmidt
  • Attila.Cs (zerodaybugs.com)
  • Stanley Tobias
  • minhducnguyen03022002@gmail.com with Saigon Newport Corporation

Revisions

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

Show details on source website

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  "aliases": [
    "CVE-2026-96225"
  ],
  "database_specific": {
    "cwe_ids": [
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    "github_reviewed": true,
    "github_reviewed_at": "2026-10-13T20:51:51Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in Microsoft.NETCore.App.Runtime; System.Private.CoreLib. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nUnix named-mutex and shared-memory paths can be manipulated through insecure global directories, symlink races, and unsafe permission changes, allowing local attackers to truncate or overwrite files, widen directory permissions, or elevate privileges.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/476\n\n## CVSS Details\n\n- **Version:** 3.1\n- **Severity:** High\n- **Score:** 7.8\n- **Vector:** `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`\n- **Weakness:** CWE-59 (Improper Link Resolution Before File Access (\u0027Link Following\u0027))\n\n## Affected Platforms\n\n- **Platforms:** Linux, macOS\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.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 8.0.0, \u003c= 8.0.31 | 8.0.32\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 10.0.0, \u003c= 10.0.12 | 10.0.13\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 11.0.0-preview.1, \u003c= 11.0.0-rc.1 | 11.0.0-rc.2\n[Microsoft.NETCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-musl-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.linux-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-arm64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\n[Microsoft.NETCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NETCore.App.Runtime.osx-x64) | \u003e= 9.0.0, \u003c= 9.0.20 | 9.0.21\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-2026-96225](https://www.cve.org/CVERecord?id=CVE-2026-96225)\n\n### Acknowledgements\n\n- Weeraphat Srisutham\n- Ky0toFu (@ky0tofu)\n- Leandro Batista\n- Kevin Schmidt\n- Attila.Cs (zerodaybugs.com)\n- Stanley Tobias\n- minhducnguyen03022002@gmail.com with Saigon Newport Corporation\n\n### Revisions\n\nV1.0 (10/13/2026): Advisory published.",
  "id": "GHSA-w6wh-p4g7-mpj2",
  "modified": "2026-10-13T20:51:52Z",
  "published": "2026-10-13T20:51:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/runtime/security/advisories/GHSA-w6wh-p4g7-mpj2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/announcements/issues/476"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/runtime/issues/135706"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/runtime"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Microsoft Security Advisory CVE-2026-96225 - .NET and Visual Studio Elevation of Privilege Vulnerability"
}

GHSA-W728-JX3Q-VWR2

Vulnerability from github – Published: 2023-06-23 12:30 – Updated: 2024-04-04 05:06
VLAI
Details

Dell Command | Update, Dell Update, and Alienware Update versions 4.8.0 and prior contain an Insecure Operation on Windows Junction / Mount Point vulnerability. A local malicious user could potentially exploit this vulnerability leading to privilege escalation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-28065"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1386",
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-23T12:15:09Z",
    "severity": "HIGH"
  },
  "details": "\nDell Command | Update, Dell Update, and Alienware Update versions 4.8.0 and prior contain an Insecure Operation on Windows Junction / Mount Point vulnerability. A local malicious user could potentially exploit this vulnerability leading to privilege escalation.\n\n",
  "id": "GHSA-w728-jx3q-vwr2",
  "modified": "2024-04-04T05:06:31Z",
  "published": "2023-06-23T12:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28065"
    },
    {
      "type": "WEB",
      "url": "https://www.dell.com/support/kbdoc/en-us/000212574/dsa-2023-146"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation MIT-48.1
Architecture and Design

Strategy: Separation of Privilege

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.
CAPEC-132: Symlink Attack

An adversary positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name.

CAPEC-17: Using Malicious Files

An attack of this type exploits a system's configuration that allows an adversary to either directly access an executable file, for example through shell access; or in a possible worst case allows an adversary to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.

CAPEC-35: Leverage Executable Code in Non-Executable Files

An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.

CAPEC-76: Manipulating Web Input to File System Calls

An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.