CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6350 vulnerabilities reference this CWE, most recent first.
GHSA-576C-PQR4-56R8
Vulnerability from github – Published: 2022-05-24 16:51 – Updated: 2024-04-04 01:22Null pointer dereferencing can happen when playing the clip with wrong block group id in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in MDM9150, MDM9206, MDM9607, MDM9650, MSM8909W, MSM8996AU, QCS405, QCS605, Qualcomm 215, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 600, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 665, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM439, SDM630, SDM660, SDX20, Snapdragon_High_Med_2016
{
"affected": [],
"aliases": [
"CVE-2019-2334"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-25T17:15:00Z",
"severity": "HIGH"
},
"details": "Null pointer dereferencing can happen when playing the clip with wrong block group id in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wearables in MDM9150, MDM9206, MDM9607, MDM9650, MSM8909W, MSM8996AU, QCS405, QCS605, Qualcomm 215, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 600, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 665, SD 675, SD 712 / SD 710 / SD 670, SD 730, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SDA660, SDM439, SDM630, SDM660, SDX20, Snapdragon_High_Med_2016",
"id": "GHSA-576c-pqr4-56r8",
"modified": "2024-04-04T01:22:52Z",
"published": "2022-05-24T16:51:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-2334"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins"
}
],
"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-578W-3CJW-832G
Vulnerability from github – Published: 2022-08-23 00:00 – Updated: 2022-08-24 00:00A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
{
"affected": [],
"aliases": [
"CVE-2021-3659"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-22T15:15:00Z",
"severity": "MODERATE"
},
"details": "A NULL pointer dereference flaw was found in the Linux kernel\u2019s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.",
"id": "GHSA-578w-3cjw-832g",
"modified": "2022-08-24T00:00:28Z",
"published": "2022-08-23T00:00:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3659"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2021-3659"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1975949"
},
{
"type": "WEB",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8"
}
],
"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-57F6-MG5V-52V9
Vulnerability from github – Published: 2022-05-17 01:19 – Updated: 2022-05-17 01:19Calendar in Apple iOS before 9.3.3 allows remote attackers to cause a denial of service (NULL pointer dereference and device restart) via a crafted invitation.
{
"affected": [],
"aliases": [
"CVE-2016-4605"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-07-22T02:59:00Z",
"severity": "HIGH"
},
"details": "Calendar in Apple iOS before 9.3.3 allows remote attackers to cause a denial of service (NULL pointer dereference and device restart) via a crafted invitation.",
"id": "GHSA-57f6-mg5v-52v9",
"modified": "2022-05-17T01:19:54Z",
"published": "2022-05-17T01:19:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4605"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT206902"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/91825"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036344"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-57F6-PH2R-458Q
Vulnerability from github – Published: 2022-05-17 03:21 – Updated: 2022-05-17 03:21An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2016-9624"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-12-12T02:59:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-33. w3m allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted HTML page.",
"id": "GHSA-57f6-ph2r-458q",
"modified": "2022-05-17T03:21:41Z",
"published": "2022-05-17T03:21:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9624"
},
{
"type": "WEB",
"url": "https://github.com/tats/w3m/issues/35"
},
{
"type": "WEB",
"url": "https://github.com/tats/w3m/blob/master/ChangeLog"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/11/24/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-57FM-4Q7W-88CR
Vulnerability from github – Published: 2025-03-28 15:31 – Updated: 2025-04-01 15:31Null Pointer Dereference vulnerability in libarchive 3.7.6 and earlier when running program bsdtar in function header_pax_extension at rchive_read_support_format_tar.c:1844:8.
{
"affected": [],
"aliases": [
"CVE-2024-48615"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-28T15:15:45Z",
"severity": "HIGH"
},
"details": "Null Pointer Dereference vulnerability in libarchive 3.7.6 and earlier when running program bsdtar in function header_pax_extension at rchive_read_support_format_tar.c:1844:8.",
"id": "GHSA-57fm-4q7w-88cr",
"modified": "2025-04-01T15:31:29Z",
"published": "2025-03-28T15:31:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48615"
},
{
"type": "WEB",
"url": "https://github.com/88Sanghy88/crash-test"
},
{
"type": "WEB",
"url": "https://github.com/libarchive/libarchive/releases/download/v3.7.6/libarchive-3.7.6.tar.gz"
}
],
"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-57HR-R2GG-FQR9
Vulnerability from github – Published: 2024-07-29 18:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_hd_modes
In nv17_tv_get_hd_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). The same applies to drm_cvt_mode(). Add a check to avoid null pointer dereference.
{
"affected": [],
"aliases": [
"CVE-2024-41089"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-29T16:15:04Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/nouveau/dispnv04: fix null pointer dereference in nv17_tv_get_hd_modes\n\nIn nv17_tv_get_hd_modes(), the return value of drm_mode_duplicate() is\nassigned to mode, which will lead to a possible NULL pointer dereference\non failure of drm_mode_duplicate(). The same applies to drm_cvt_mode().\nAdd a check to avoid null pointer dereference.",
"id": "GHSA-57hr-r2gg-fqr9",
"modified": "2025-11-04T00:31:04Z",
"published": "2024-07-29T18:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41089"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1c9f2e60150b4f13789064370e37f39e6e060f50"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/30cbf6ffafbbdd8a6e4e5f0a2e9a9827ee83f3ad"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/56fc4d3b0bdef691831cd95715a7ca3ebea98b2d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5eecb49a6c268dc229005bf6e8167d4001dc09a0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d411c8ccc0137a612e0044489030a194ff5c843"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6e49a157d541e7e97b815a56f4bdfcbc89844a59"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7ece609b0ce7a7ea8acdf512a77d1fee26621637"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ffabad4aa91e33ced3c6ae793fb37771b3e9cb51"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.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-57JG-XFPH-7VQG
Vulnerability from github – Published: 2026-01-02 15:30 – Updated: 2026-01-05 21:30A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.
We have already fixed the vulnerability in the following version: QTS 5.2.7.3256 build 20250913 and later
{
"affected": [],
"aliases": [
"CVE-2025-53590"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-02T15:16:01Z",
"severity": "LOW"
},
"details": "A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.\n\nWe have already fixed the vulnerability in the following version:\nQTS 5.2.7.3256 build 20250913 and later",
"id": "GHSA-57jg-xfph-7vqg",
"modified": "2026-01-05T21:30:30Z",
"published": "2026-01-02T15:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53590"
},
{
"type": "WEB",
"url": "https://www.qnap.com/en/security-advisory/qsa-25-50"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/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-57M4-VWWV-MMQR
Vulnerability from github – Published: 2024-03-27 06:30 – Updated: 2025-11-04 21:31Xfig v3.2.8 was discovered to contain a NULL pointer dereference when calling XGetWMHints(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server or window manager.
{
"affected": [],
"aliases": [
"CVE-2023-45920"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-27T05:15:47Z",
"severity": "MODERATE"
},
"details": "Xfig v3.2.8 was discovered to contain a NULL pointer dereference when calling XGetWMHints(). NOTE: this is disputed because it is not expected that an X application should continue to run when there is arbitrary anomalous behavior from the X server or window manager.",
"id": "GHSA-57m4-vwwv-mmqr",
"modified": "2025-11-04T21:31:22Z",
"published": "2024-03-27T06:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45920"
},
{
"type": "WEB",
"url": "https://sourceforge.net/p/mcj/tickets/155"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/176803/Xfig-3.2.8-Null-Pointer.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Jan/48"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-57MJ-8CW4-CM9W
Vulnerability from github – Published: 2024-04-23 06:30 – Updated: 2024-04-23 06:30Watchdog Antivirus v1.6.415 is vulnerable to a Denial of Service vulnerability by triggering the 0x80002014 IOCTL code of the wsdk-driver.sys driver.
{
"affected": [],
"aliases": [
"CVE-2024-1241"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-23T04:15:08Z",
"severity": "MODERATE"
},
"details": "Watchdog Antivirus v1.6.415 is vulnerable to a Denial of Service vulnerability by triggering the 0x80002014 IOCTL code of the wsdk-driver.sys driver.",
"id": "GHSA-57mj-8cw4-cm9w",
"modified": "2024-04-23T06:30:46Z",
"published": "2024-04-23T06:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1241"
},
{
"type": "WEB",
"url": "https://fluidattacks.com/advisories/cole"
},
{
"type": "WEB",
"url": "https://watchdog.dev/solutions/anti-virus"
}
],
"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-57PW-GF47-FR76
Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-04-14 21:32In the Linux kernel, the following vulnerability has been resolved:
phy: usb: sunplus: Fix potential null-ptr-deref in sp_usb_phy_probe()
sp_usb_phy_probe() will call platform_get_resource_byname() that may fail and return NULL. devm_ioremap() will use usbphy->moon4_res_mem->start as input, which may causes null-ptr-deref. Check the ret value of platform_get_resource_byname() to avoid the null-ptr-deref.
{
"affected": [],
"aliases": [
"CVE-2022-49756"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-27T17:15:40Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nphy: usb: sunplus: Fix potential null-ptr-deref in sp_usb_phy_probe()\n\nsp_usb_phy_probe() will call platform_get_resource_byname() that may fail\nand return NULL. devm_ioremap() will use usbphy-\u003emoon4_res_mem-\u003estart as\ninput, which may causes null-ptr-deref. Check the ret value of\nplatform_get_resource_byname() to avoid the null-ptr-deref.",
"id": "GHSA-57pw-gf47-fr76",
"modified": "2025-04-14T21:32:23Z",
"published": "2025-03-27T18:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49756"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/17eee264ef386ef30a69dd70e36f29893b85c170"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d838b5c99bcecd593b4710a93fce8fdbf122395b"
}
],
"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
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
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
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
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.