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.
6406 vulnerabilities reference this CWE, most recent first.
GHSA-5WMQ-RGWC-2FGC
Vulnerability from github – Published: 2022-05-24 16:44 – Updated: 2024-04-04 00:11
VLAI
Details
A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature. This can be used as a denial-of-service (DOS) attack because Thunderbird reopens the last seen message on restart, triggering the crash again. This vulnerability affects Thunderbird < 60.5.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2018-18513"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-04-26T17:29:00Z",
"severity": "HIGH"
},
"details": "A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature. This can be used as a denial-of-service (DOS) attack because Thunderbird reopens the last seen message on restart, triggering the crash again. This vulnerability affects Thunderbird \u003c 60.5.",
"id": "GHSA-5wmq-rgwc-2fgc",
"modified": "2024-04-04T00:11:08Z",
"published": "2022-05-24T16:44:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18513"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1533300"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-03"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5WQC-3HGV-X49W
Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47
VLAI
Details
NULL Pointer Dereference in the "isomedia/track.c" module's "MergeTrack()" function of GPAC v0.5.2 allows attackers to execute arbitrary code or cause a Denial-of-Service (DoS) by uploading a malicious MP4 file.
{
"affected": [],
"aliases": [
"CVE-2021-28300"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-14T14:15:00Z",
"severity": "CRITICAL"
},
"details": "NULL Pointer Dereference in the \"isomedia/track.c\" module\u0027s \"MergeTrack()\" function of GPAC v0.5.2 allows attackers to execute arbitrary code or cause a Denial-of-Service (DoS) by uploading a malicious MP4 file.",
"id": "GHSA-5wqc-3hgv-x49w",
"modified": "2022-05-24T17:47:37Z",
"published": "2022-05-24T17:47:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28300"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/1702"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5WVV-JG2M-5J9P
Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47
VLAI
Details
The gf_isom_set_extraction_slc function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.
{
"affected": [],
"aliases": [
"CVE-2021-31258"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-19T19:15:00Z",
"severity": "MODERATE"
},
"details": "The gf_isom_set_extraction_slc function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.",
"id": "GHSA-5wvv-jg2m-5j9p",
"modified": "2022-05-24T17:47:51Z",
"published": "2022-05-24T17:47:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31258"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/1706"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/commit/ebfa346eff05049718f7b80041093b4c5581c24e"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5WXH-HJ25-35HH
Vulnerability from github – Published: 2022-07-13 00:01 – Updated: 2022-07-20 00:00
VLAI
Details
The frame scheduling module has a null pointer dereference vulnerability. Successful exploitation of this vulnerability will affect the kernel availability.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-34736"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-12T14:15:00Z",
"severity": "HIGH"
},
"details": "The frame scheduling module has a null pointer dereference vulnerability. Successful exploitation of this vulnerability will affect the kernel availability.",
"id": "GHSA-5wxh-hj25-35hh",
"modified": "2022-07-20T00:00:24Z",
"published": "2022-07-13T00:01:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34736"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2022/7"
},
{
"type": "WEB",
"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202207-0000001342389149"
}
],
"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-5WXQ-6P7V-M87W
Vulnerability from github – Published: 2024-11-05 18:32 – Updated: 2025-11-04 00:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
drm/amd: Guard against bad data for ATIF ACPI method
If a BIOS provides bad data in response to an ATIF method call this causes a NULL pointer dereference in the caller.
? show_regs (arch/x86/kernel/dumpstack.c:478 (discriminator 1))
? __die (arch/x86/kernel/dumpstack.c:423 arch/x86/kernel/dumpstack.c:434)
? page_fault_oops (arch/x86/mm/fault.c:544 (discriminator 2) arch/x86/mm/fault.c:705 (discriminator 2))
? do_user_addr_fault (arch/x86/mm/fault.c:440 (discriminator 1) arch/x86/mm/fault.c:1232 (discriminator 1))
? acpi_ut_update_object_reference (drivers/acpi/acpica/utdelete.c:642)
? exc_page_fault (arch/x86/mm/fault.c:1542)
? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623)
? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:387 (discriminator 2)) amdgpu
? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:386 (discriminator 1)) amdgpu
It has been encountered on at least one system, so guard for it.
(cherry picked from commit c9b7c809b89f24e9372a4e7f02d64c950b07fdee)
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-50117"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-05T18:15:14Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd: Guard against bad data for ATIF ACPI method\n\nIf a BIOS provides bad data in response to an ATIF method call\nthis causes a NULL pointer dereference in the caller.\n\n```\n? show_regs (arch/x86/kernel/dumpstack.c:478 (discriminator 1))\n? __die (arch/x86/kernel/dumpstack.c:423 arch/x86/kernel/dumpstack.c:434)\n? page_fault_oops (arch/x86/mm/fault.c:544 (discriminator 2) arch/x86/mm/fault.c:705 (discriminator 2))\n? do_user_addr_fault (arch/x86/mm/fault.c:440 (discriminator 1) arch/x86/mm/fault.c:1232 (discriminator 1))\n? acpi_ut_update_object_reference (drivers/acpi/acpica/utdelete.c:642)\n? exc_page_fault (arch/x86/mm/fault.c:1542)\n? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623)\n? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:387 (discriminator 2)) amdgpu\n? amdgpu_atif_query_backlight_caps.constprop.0 (drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c:386 (discriminator 1)) amdgpu\n```\n\nIt has been encountered on at least one system, so guard for it.\n\n(cherry picked from commit c9b7c809b89f24e9372a4e7f02d64c950b07fdee)",
"id": "GHSA-5wxq-6p7v-m87w",
"modified": "2025-11-04T00:31:55Z",
"published": "2024-11-05T18:32:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50117"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1d7175f9c57b1abf9ecfbdfd53ea760761f52ffe"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/234682910971732cd4da96fd95946e296e486b38"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/43b4fa6e0e238c6e2662f4fb61d9f51c2785fb1d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/58556dcbd5606a5daccaee73b2130bc16b48e025"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6032287747f874b52dc8b9d7490e2799736e035f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/975ede2a7bec52b5da1428829b3439667c8a234b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf58f03931fdcf7b3c45cb76ac13244477a60f44"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cd67af3c1762de4c2483ae4dbdd98f9ea8fa56e3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
}
],
"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-5X4C-VWV3-GHP2
Vulnerability from github – Published: 2026-05-19 06:30 – Updated: 2026-05-19 06:30
VLAI
Details
in OpenHarmony v6.0 and prior versions allow a local attacker cause DOS.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-25110"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-19T04:16:28Z",
"severity": "LOW"
},
"details": "in OpenHarmony v6.0 and prior versions allow a local attacker cause DOS.",
"id": "GHSA-5x4c-vwv3-ghp2",
"modified": "2026-05-19T06:30:29Z",
"published": "2026-05-19T06:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25110"
},
{
"type": "WEB",
"url": "https://gitcode.com/openharmony/security/tree/master/zh/security-disclosure/2026/2026-04.md"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-5X55-XCJP-HQWX
Vulnerability from github – Published: 2021-12-21 00:00 – Updated: 2021-12-21 00:00
VLAI
Details
Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2021-43749"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-12-20T21:15:00Z",
"severity": "MODERATE"
},
"details": "Adobe Premiere Rush versions 1.5.16 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-5x55-xcjp-hqwx",
"modified": "2021-12-21T00:00:26Z",
"published": "2021-12-21T00:00:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43749"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/premiere_rush/apsb21-101.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5X5R-X3M2-4893
Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47
VLAI
Details
The gf_isom_cenc_get_default_info_internal function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.
{
"affected": [],
"aliases": [
"CVE-2021-31259"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-19T19:15:00Z",
"severity": "MODERATE"
},
"details": "The gf_isom_cenc_get_default_info_internal function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.",
"id": "GHSA-5x5r-x3m2-4893",
"modified": "2022-05-24T17:47:51Z",
"published": "2022-05-24T17:47:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31259"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/1735"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/commit/3b84ffcbacf144ce35650df958432f472b6483f8"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5X62-XMMP-3F69
Vulnerability from github – Published: 2024-05-19 12:30 – Updated: 2026-05-12 12:31
VLAI
Details
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btintel: Fix null ptr deref in btintel_read_version
If hci_cmd_sync_complete() is triggered and skb is NULL, then hdev->req_skb is NULL, which will cause this issue.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-35933"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-19T11:15:49Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: Fix null ptr deref in btintel_read_version\n\nIf hci_cmd_sync_complete() is triggered and skb is NULL, then\nhdev-\u003ereq_skb is NULL, which will cause this issue.",
"id": "GHSA-5x62-xmmp-3f69",
"modified": "2026-05-12T12:31:50Z",
"published": "2024-05-19T12:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35933"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/006936ecb4edfc3102464044f75858c714e34d28"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/22d3053ef05f0b5045e45bd91e7473846261d65e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/68a69bb2ecafaacdb998a87783068fb51736f43b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/86e9b47e8a75c74b1bd83a479979b425c5dc8bd9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b19fe5eea619d54eea59bb8a37c0f8d00ef0e912"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b79e040910101b020931ba0c9a6b77e81ab7f645"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ec2049fb2b8be3e108fe2ef1f1040f91e72c9990"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ffdca0a62abaf8c41d8d9ea132000fd808de329b"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"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-5X73-G3F4-QR77
Vulnerability from github – Published: 2022-05-17 00:12 – Updated: 2022-05-17 00:12
VLAI
Details
K7Sentry.sys 15.1.0.59 in K7 Antivirus 15.1.0309 has a NULL pointer dereference via a 0x950025a4 DeviceIoControl request.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2017-17700"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-12-15T20:29:00Z",
"severity": "CRITICAL"
},
"details": "K7Sentry.sys 15.1.0.59 in K7 Antivirus 15.1.0309 has a NULL pointer dereference via a 0x950025a4 DeviceIoControl request.",
"id": "GHSA-5x73-g3f4-qr77",
"modified": "2022-05-17T00:12:24Z",
"published": "2022-05-17T00:12:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17700"
},
{
"type": "WEB",
"url": "https://github.com/mmmxny/K7-Antivirus/tree/master/cve1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.