Common Weakness Enumeration
CWE-843
AllowedAccess of Resource Using Incompatible Type ('Type Confusion')
Abstraction: Base · Status: Incomplete
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
1123 vulnerabilities reference this CWE, most recent first.
GHSA-W95C-7994-GHPR
Vulnerability from github – Published: 2024-12-27 06:30 – Updated: 2025-11-03 22:53
VLAI
Summary
TCPDF has incorrect comparison
Details
An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes.
Severity
7.5 (High)
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "tecnickcom/tcpdf"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.8.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-56522"
],
"database_specific": {
"cwe_ids": [
"CWE-697",
"CWE-843"
],
"github_reviewed": true,
"github_reviewed_at": "2024-12-27T21:07:22Z",
"nvd_published_at": "2024-12-27T05:15:08Z",
"severity": "HIGH"
},
"details": "An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes.",
"id": "GHSA-w95c-7994-ghpr",
"modified": "2025-11-03T22:53:58Z",
"published": "2024-12-27T06:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56522"
},
{
"type": "WEB",
"url": "https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89"
},
{
"type": "PACKAGE",
"url": "https://github.com/tecnickcom/TCPDF"
},
{
"type": "WEB",
"url": "https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html"
},
{
"type": "WEB",
"url": "https://tcpdf.org"
},
{
"type": "WEB",
"url": "https://www.php.net/manual/en/types.comparisons.php"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "TCPDF has incorrect comparison"
}
GHSA-W9MV-CFV3-CXVR
Vulnerability from github – Published: 2025-07-21 21:31 – Updated: 2025-07-21 21:31
VLAI
Details
INVT VT-Designer PM3 File Parsing Type Confusion Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of INVT VT-Designer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of PM3 files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25723.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-7230"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-21T20:15:43Z",
"severity": "HIGH"
},
"details": "INVT VT-Designer PM3 File Parsing Type Confusion Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of INVT VT-Designer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of PM3 files. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25723.",
"id": "GHSA-w9mv-cfv3-cxvr",
"modified": "2025-07-21T21:31:38Z",
"published": "2025-07-21T21:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-7230"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-481"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W9W3-F8Q7-X576
Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2025-11-11 18:30
VLAI
Details
In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.
Severity
4.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-33624"
],
"database_specific": {
"cwe_ids": [
"CWE-203",
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-23T16:15:00Z",
"severity": "MODERATE"
},
"details": "In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.",
"id": "GHSA-w9w3-f8q7-x576",
"modified": "2025-11-11T18:30:13Z",
"published": "2022-05-24T19:06:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33624"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db"
},
{
"type": "WEB",
"url": "https://github.com/benschlueter/CVE-2021-33624"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"
},
{
"type": "WEB",
"url": "https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/06/21/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-WC58-H6H3-GQ4P
Vulnerability from github – Published: 2025-11-28 03:30 – Updated: 2025-11-28 03:30
VLAI
Details
Permission control vulnerability in the distributed component. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
Severity
8.0 (High)
{
"affected": [],
"aliases": [
"CVE-2025-58310"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-28T03:15:59Z",
"severity": "HIGH"
},
"details": "Permission control vulnerability in the distributed component.\nImpact: Successful exploitation of this vulnerability may affect service confidentiality.",
"id": "GHSA-wc58-h6h3-gq4p",
"modified": "2025-11-28T03:30:27Z",
"published": "2025-11-28T03:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58310"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2025/11"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WC94-6R6J-XG2G
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31
VLAI
Details
Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-49702"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:57Z",
"severity": "HIGH"
},
"details": "Access of resource using incompatible type (\u0027type confusion\u0027) in Microsoft Office allows an unauthorized attacker to execute code locally.",
"id": "GHSA-wc94-6r6j-xg2g",
"modified": "2025-07-08T18:31:48Z",
"published": "2025-07-08T18:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49702"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49702"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WCGQ-GQH8-8P8F
Vulnerability from github – Published: 2023-03-24 21:30 – Updated: 2023-03-30 15:30
VLAI
Details
In lwis_slc_buffer_free of lwis_device_slc.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-245300559References: N/A
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-21056"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-24T20:15:00Z",
"severity": "MODERATE"
},
"details": "In lwis_slc_buffer_free of lwis_device_slc.c, there is a possible memory corruption due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-245300559References: N/A",
"id": "GHSA-wcgq-gqh8-8p8f",
"modified": "2023-03-30T15:30:20Z",
"published": "2023-03-24T21:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21056"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/pixel/2023-03-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WGFR-MF59-497P
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-55025"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:13Z",
"severity": "HIGH"
},
"details": "Access of resource using incompatible type (\u0027type confusion\u0027) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-wgfr-mf59-497p",
"modified": "2026-07-14T18:32:32Z",
"published": "2026-07-14T18:32:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55025"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55025"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-WGW2-WWQ8-C7WF
Vulnerability from github – Published: 2022-05-13 01:20 – Updated: 2025-10-22 17:37
VLAI
Summary
ChakraCore RCE Vulnerability
Details
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
Severity
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.ChakraCore"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-8298"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": true,
"github_reviewed_at": "2023-07-21T20:39:24Z",
"nvd_published_at": "2018-07-11T00:29:00Z",
"severity": "HIGH"
},
"details": "A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka \"Scripting Engine Memory Corruption Vulnerability.\" This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.",
"id": "GHSA-wgw2-wwq8-c7wf",
"modified": "2025-10-22T17:37:09Z",
"published": "2022-05-13T01:20:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8298"
},
{
"type": "WEB",
"url": "https://github.com/chakra-core/ChakraCore/pull/5444"
},
{
"type": "WEB",
"url": "https://github.com/chakra-core/ChakraCore/commit/cb9957e2763c36dbd12afa5c9261465159e16c86"
},
{
"type": "PACKAGE",
"url": "https://github.com/chakra-core/ChakraCore"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298"
},
{
"type": "WEB",
"url": "https://web.archive.org/web/20210124183835/http://www.securityfocus.com/bid/104639"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/45217"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H",
"type": "CVSS_V3"
}
],
"summary": "ChakraCore RCE Vulnerability"
}
GHSA-WH89-H5F7-HHCR
Vulnerability from github – Published: 2023-08-03 03:30 – Updated: 2023-11-25 12:30
VLAI
Details
Type Confusion in V8 in Google Chrome prior to 115.0.5790.170 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2023-4068"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-03T01:15:11Z",
"severity": "HIGH"
},
"details": "Type Confusion in V8 in Google Chrome prior to 115.0.5790.170 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-wh89-h5f7-hhcr",
"modified": "2023-11-25T12:30:22Z",
"published": "2023-08-03T03:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4068"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1466183"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202311-11"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202312-07"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202401-34"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5467"
}
],
"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:N",
"type": "CVSS_V3"
}
]
}
GHSA-WHC4-7QG7-64GG
Vulnerability from github – Published: 2026-04-02 21:32 – Updated: 2026-04-02 21:32
VLAI
Details
A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An attacker may be able to cause unexpected app termination.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-43236"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-02T19:20:10Z",
"severity": "LOW"
},
"details": "A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7, macOS Ventura 13.7.7. An attacker may be able to cause unexpected app termination.",
"id": "GHSA-whc4-7qg7-64gg",
"modified": "2026-04-02T21:32:52Z",
"published": "2026-04-02T21:32:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-43236"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/124149"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/124150"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/124151"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
]
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.