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.
1041 vulnerabilities reference this CWE, most recent first.
GHSA-W5RX-P7H2-MFJ5
Vulnerability from github – Published: 2022-05-24 17:24 – Updated: 2022-05-24 17:24
VLAI
Details
Type Confusion in V8 in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2020-6533"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-22T17:15:00Z",
"severity": "MODERATE"
},
"details": "Type Confusion in V8 in Google Chrome prior to 84.0.4147.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-w5rx-p7h2-mfj5",
"modified": "2022-05-24T17:24:10Z",
"published": "2022-05-24T17:24:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6533"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/07/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1069964"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTRPPTKZ2RKVH2XGQCWNFZ7FOGQ5LLCA"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MYIDWCHG24ZTFD4P42D4A4WWPPA74BCG"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-08"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202101-30"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4824"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00069.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00007.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00018.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00041.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-W6HH-2VXJ-XW69
Vulnerability from github – Published: 2024-04-30 15:30 – Updated: 2024-04-30 15:30
VLAI
Details
A type confusion vulnerability vulnerability exists in the way Foxit Reader 2024.1.0.23997 handles a Lock object. A specially crafted Javascript code inside a malicious PDF document can trigger this vulnerability, which can lead to memory corruption and result in arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-25575"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-30T15:15:52Z",
"severity": "HIGH"
},
"details": "A type confusion vulnerability vulnerability exists in the way Foxit Reader 2024.1.0.23997 handles a Lock object. A specially crafted Javascript code inside a malicious PDF document can trigger this vulnerability, which can lead to memory corruption and result in arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.",
"id": "GHSA-w6hh-2vxj-xw69",
"modified": "2024-04-30T15:30:37Z",
"published": "2024-04-30T15:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25575"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2024-1963"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1963"
}
],
"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"
}
]
}
GHSA-W6VP-PJ29-PRXQ
Vulnerability from github – Published: 2022-05-24 17:08 – Updated: 2022-05-24 17:08
VLAI
Details
Type confusion in JavaScript in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-6382"
],
"database_specific": {
"cwe_ids": [
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-02-11T15:15:00Z",
"severity": "MODERATE"
},
"details": "Type confusion in JavaScript in Google Chrome prior to 80.0.3987.87 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-w6vp-pj29-prxq",
"modified": "2022-05-24T17:08:37Z",
"published": "2022-05-24T17:08:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6382"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0514"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1031909"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-08"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4638"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html"
}
],
"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"
}
]
}
GHSA-W87R-3VGP-MX7Q
Vulnerability from github – Published: 2022-05-24 17:39 – Updated: 2022-05-24 17:39
VLAI
Details
An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A NULL pointer dereference exists when rendering malformed .DXF and .DWG files. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart). This is issue 3 of 3.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-25177"
],
"database_specific": {
"cwe_ids": [
"CWE-704",
"CWE-843"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-18T08:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in Open Design Alliance Drawings SDK before 2021.11. A NULL pointer dereference exists when rendering malformed .DXF and .DWG files. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart). This is issue 3 of 3.",
"id": "GHSA-w87r-3vgp-mx7q",
"modified": "2022-05-24T17:39:25Z",
"published": "2022-05-24T17:39:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25177"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-663999.pdf"
},
{
"type": "WEB",
"url": "https://www.opendesign.com/security-advisories"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-219"
}
],
"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-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"
}
]
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.