Common Weakness Enumeration
CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6370 vulnerabilities reference this CWE, most recent first.
GHSA-H43C-GG33-QJ9G
Vulnerability from github – Published: 2024-11-26 15:31 – Updated: 2024-11-27 18:34
VLAI
Details
NSC_DeriveKey inadvertently assumed that the phKey parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows phKey to be NULL for certain mechanisms. This vulnerability affects Firefox < 133 and Thunderbird < 133.
Severity
9.1 (Critical)
{
"affected": [],
"aliases": [
"CVE-2024-11705"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-26T14:15:19Z",
"severity": "CRITICAL"
},
"details": "`NSC_DeriveKey` inadvertently assumed that the `phKey` parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows `phKey` to be NULL for certain mechanisms. This vulnerability affects Firefox \u003c 133 and Thunderbird \u003c 133.",
"id": "GHSA-h43c-gg33-qj9g",
"modified": "2024-11-27T18:34:03Z",
"published": "2024-11-26T15:31:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-11705"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1921768"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2024-63"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2024-67"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-H43P-X2C2-9H92
Vulnerability from github – Published: 2024-08-26 12:31 – Updated: 2024-08-27 15:32
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
drm/admgpu: fix dereferencing null pointer context
When user space sets an invalid ta type, the pointer context will be empty. So it need to check the pointer context before using it
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-43906"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-26T11:15:04Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/admgpu: fix dereferencing null pointer context\n\nWhen user space sets an invalid ta type, the pointer context will be empty.\nSo it need to check the pointer context before using it",
"id": "GHSA-h43p-x2c2-9h92",
"modified": "2024-08-27T15:32:44Z",
"published": "2024-08-26T12:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43906"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/030ffd4d43b433bc6671d9ec34fc12c59220b95d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4fd52f7c2c11d330571c6bde06e5ea508ec25c9d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/641dac64178ccdb9e45c92b67120316896294d05"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H44J-3763-JCF8
Vulnerability from github – Published: 2024-06-25 15:31 – Updated: 2024-08-19 21:35
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
thermal/drivers/qcom/lmh: Check for SCM availability at probe
Up until now, the necessary scm availability check has not been performed, leading to possible null pointer dereferences (which did happen for me on RB1).
Fix that.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-39466"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-25T15:15:15Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal/drivers/qcom/lmh: Check for SCM availability at probe\n\nUp until now, the necessary scm availability check has not been\nperformed, leading to possible null pointer dereferences (which did\nhappen for me on RB1).\n\nFix that.",
"id": "GHSA-h44j-3763-jcf8",
"modified": "2024-08-19T21:35:07Z",
"published": "2024-06-25T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39466"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0a47ba94ec3d8f782b33e3d970cfcb769b962464"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2226b145afa5e13cb60dbe77fb20fb0666a1caf3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/560d69c975072974c11434ca6953891e74c1a665"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aa1a0807b4a76b44fb6b58a7e9087cd4b18ab41b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d9d3490c48df572edefc0b64655259eefdcbb9be"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H455-WJC2-8927
Vulnerability from github – Published: 2022-05-06 00:00 – Updated: 2022-05-14 00:03
VLAI
Details
Foxit PDF Reader v11.2.1.53537 was discovered to contain a NULL pointer dereference via the component FoxitPDFReader.exe. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PHP file.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-27359"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-05T19:15:00Z",
"severity": "MODERATE"
},
"details": "Foxit PDF Reader v11.2.1.53537 was discovered to contain a NULL pointer dereference via the component FoxitPDFReader.exe. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PHP file.",
"id": "GHSA-h455-wjc2-8927",
"modified": "2022-05-14T00:03:33Z",
"published": "2022-05-06T00:00:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27359"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1INiwZyuuWHWfVOBFnVTf5kC7smynSyOy/view?usp=sharing"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-H469-4FCF-P23H
Vulnerability from github – Published: 2025-08-21 18:31 – Updated: 2025-08-29 21:02
VLAI
Summary
Mattermost has Potential Server Crash due to Unvalidated Import Data
Details
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature.
Severity
4.9 (Medium)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 10.8.3"
},
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server"
},
"ranges": [
{
"events": [
{
"introduced": "10.8.0"
},
{
"fixed": "10.8.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 10.5.8"
},
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server"
},
"ranges": [
{
"events": [
{
"introduced": "10.5.0"
},
{
"fixed": "10.5.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 10.9.3"
},
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server"
},
"ranges": [
{
"events": [
{
"introduced": "10.9.0"
},
{
"fixed": "10.9.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server"
},
"ranges": [
{
"events": [
{
"introduced": "10.10.0"
},
{
"fixed": "10.10.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"10.10.0"
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost/server/v8"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.0.0-20250708173752-d6b35c41f0ae5"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 9.11.17"
},
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server"
},
"ranges": [
{
"events": [
{
"introduced": "9.11.0"
},
{
"fixed": "9.11.18"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server/v5"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.39.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Go",
"name": "github.com/mattermost/mattermost-server/v6"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "6.7.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-8402"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2025-08-22T17:34:35Z",
"nvd_published_at": "2025-08-21T17:15:33Z",
"severity": "MODERATE"
},
"details": "Mattermost versions 10.8.x \u003c= 10.8.3, 10.5.x \u003c= 10.5.8, 9.11.x \u003c= 9.11.17, 10.10.x \u003c= 10.10.0, 10.9.x \u003c= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature.",
"id": "GHSA-h469-4fcf-p23h",
"modified": "2025-08-29T21:02:12Z",
"published": "2025-08-21T18:31:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8402"
},
{
"type": "PACKAGE",
"url": "https://github.com/mattermost/mattermost"
},
{
"type": "WEB",
"url": "https://mattermost.com/security-updates"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2025-3911"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Mattermost has Potential Server Crash due to Unvalidated Import Data"
}
GHSA-H47C-M3F2-95QP
Vulnerability from github – Published: 2022-05-24 17:20 – Updated: 2024-04-04 02:54
VLAI
Details
In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereference and denial of service, as demonstrated by a CWD /.. command.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2020-14149"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-06-15T18:15:00Z",
"severity": "HIGH"
},
"details": "In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereference and denial of service, as demonstrated by a CWD /.. command.",
"id": "GHSA-h47c-m3f2-95qp",
"modified": "2024-04-04T02:54:24Z",
"published": "2022-05-24T17:20:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14149"
},
{
"type": "WEB",
"url": "https://github.com/troglobit/uftpd/issues/30"
},
{
"type": "WEB",
"url": "https://bugs.gentoo.org/726308"
},
{
"type": "WEB",
"url": "https://github.com/troglobit/uftpd/releases/tag/v2.12"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00052.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H47J-Q95W-W463
Vulnerability from github – Published: 2022-05-14 01:14 – Updated: 2022-05-14 01:14
VLAI
Details
An issue was discovered in the Linux kernel through 4.17.10. There is an out-of-bounds access in __remove_dirty_segment() in fs/f2fs/segment.c when mounting an f2fs image.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2018-14614"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-27T04:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in the Linux kernel through 4.17.10. There is an out-of-bounds access in __remove_dirty_segment() in fs/f2fs/segment.c when mounting an f2fs image.",
"id": "GHSA-h47j-q95w-w463",
"modified": "2022-05-14T01:14:00Z",
"published": "2022-05-14T01:14:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14614"
},
{
"type": "WEB",
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=200419"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3932-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3932-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4094-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4118-1"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104917"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H4C6-9RM9-95HH
Vulnerability from github – Published: 2023-04-22 03:30 – Updated: 2024-04-04 03:38
VLAI
Details
NVIDIA CUDA Toolkit SDK for Linux and Windows contains a NULL pointer dereference in cuobjdump, where a local user running the tool against a malformed binary may cause a limited denial of service.
Severity
{
"affected": [],
"aliases": [
"CVE-2023-25510"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-22T03:15:10Z",
"severity": "LOW"
},
"details": "NVIDIA CUDA Toolkit SDK for Linux and Windows contains a NULL pointer dereference in cuobjdump, where a local user running the tool against a malformed binary may cause a limited denial of service.",
"id": "GHSA-h4c6-9rm9-95hh",
"modified": "2024-04-04T03:38:45Z",
"published": "2023-04-22T03:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25510"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5456"
}
],
"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"
}
]
}
GHSA-H4FX-7429-JVF7
Vulnerability from github – Published: 2022-05-24 16:51 – Updated: 2022-05-24 16:51
VLAI
Details
A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to 4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2018-16871"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-30T17:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found in the Linux kernel\u0027s NFS implementation, all versions 3.x and all versions 4.x up to 4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.",
"id": "GHSA-h4fx-7429-jvf7",
"modified": "2022-05-24T16:51:41Z",
"published": "2022-05-24T16:51:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16871"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1873"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:1891"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2696"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2730"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0740"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:1567"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:1769"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2018-16871"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1655162"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16871"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20211004-0002"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K18657134"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K18657134?utm_source=f5support\u0026amp%3Butm_medium=RSS"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K18657134?utm_source=f5support\u0026amp;utm_medium=RSS"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H4JQ-M43X-GJH8
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-14 18:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
iio: adc: ad7606: check for NULL before calling sw_mode_config()
Check that the sw_mode_config function pointer is not NULL before calling it. Not all buses define this callback, which resulted in a NULL pointer dereference.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-38025"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T10:15:34Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ad7606: check for NULL before calling sw_mode_config()\n\nCheck that the sw_mode_config function pointer is not NULL before\ncalling it. Not all buses define this callback, which resulted in a NULL\npointer dereference.",
"id": "GHSA-h4jq-m43x-gjh8",
"modified": "2025-11-14T18:31:21Z",
"published": "2025-06-18T12:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38025"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5257d80e22bf27009d6742e4c174f42cfe54e425"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c28ad63aa55eaadad2b1793b90bfbe7296cc03ba"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation MIT-56
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Requirements
Select a programming language that is not susceptible to these issues.
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Architecture and Design
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Implementation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.