Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6305 vulnerabilities reference this CWE, most recent first.

CVE-2023-3220 (GCVE-0-2023-3220)

Vulnerability from cvelistv5 – Published: 2023-06-20 00:00 – Updated: 2025-03-11 14:28
VLAI
Summary
An issue was discovered in the Linux kernel through 6.1-rc8. dpu_crtc_atomic_check in drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c lacks check of the return value of kzalloc() and will cause the NULL Pointer Dereference.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel Affected: 6.2.0-rc2
Show details on NVD website
To clipboard 

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CVE-2023-3212 (GCVE-0-2023-3212)

Vulnerability from cvelistv5 – Published: 2023-06-23 00:00 – Updated: 2024-08-02 06:48
VLAI
Summary
A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Linux kernel (gfs2 file system) Affected: Fixed in kernel 6.4-rc2
Show details on NVD website
To clipboard 

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CVE-2023-3106 (GCVE-0-2023-3106)

Vulnerability from cvelistv5 – Published: 2023-07-12 08:27 – Updated: 2025-11-20 17:30
VLAI
Title
Kernel: netlink socket crash (null pointer deref) in netlink_dump function
Summary
A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.
Severity
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Date Public
2016-07-18 00:00
Show details on NVD website
To clipboard 

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CVE-2023-3012 (GCVE-0-2023-3012)

Vulnerability from cvelistv5 – Published: 2023-05-31 00:00 – Updated: 2025-01-09 17:12
VLAI
Title
NULL Pointer Dereference in gpac/gpac
Summary
NULL Pointer Dereference in GitHub repository gpac/gpac prior to 2.2.2.
Severity
5.3 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
gpac gpac/gpac Affected: unspecified , < 2.2.2 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2023-2953 (GCVE-0-2023-2953)

Vulnerability from cvelistv5 – Published: 2023-05-30 00:00 – Updated: 2025-01-10 21:28
VLAI
Summary
A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a openldap Affected: openldap-2.4
Show details on NVD website
To clipboard 

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CVE-2023-2908 (GCVE-0-2023-2908)

Vulnerability from cvelistv5 – Published: 2023-06-30 00:00 – Updated: 2025-11-03 20:35
VLAI
Title
Libtiff: null pointer dereference in tif_dir.c
Summary
A null pointer dereference issue was found in Libtiff's tif_dir.c file. This issue may allow an attacker to pass a crafted TIFF image file to the tiffcp utility which triggers a runtime error that causes undefined behavior. This will result in an application crash, eventually leading to a denial of service.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Date Public
2023-06-30 00:00
Show details on NVD website
To clipboard 

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CVE-2023-2898 (GCVE-0-2023-2898)

Vulnerability from cvelistv5 – Published: 2023-05-26 00:00 – Updated: 2024-10-15 17:12
VLAI
Summary
There is a null-pointer-dereference flaw found in f2fs_write_end_io in fs/f2fs/data.c in the Linux kernel. This flaw allows a local privileged user to cause a denial of service problem.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Kernel Affected: NA
Show details on NVD website
To clipboard 

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CVE-2023-2875 (GCVE-0-2023-2875)

Vulnerability from cvelistv5 – Published: 2023-05-24 19:00 – Updated: 2024-08-02 06:33
VLAI
Title
eScan Antivirus IoControlCode PROCOBSRVESX.SYS 0x22E008u null pointer dereference
Summary
A vulnerability, which was classified as problematic, was found in eScan Antivirus 22.0.1400.2443. Affected is the function 0x22E008u in the library PROCOBSRVESX.SYS of the component IoControlCode Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. VDB-229854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
eScan Antivirus Affected: 22.0.1400.2443
Create a notification for this product.
Credits
Zeze7w (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2023-2872 (GCVE-0-2023-2872)

Vulnerability from cvelistv5 – Published: 2023-05-24 18:00 – Updated: 2024-08-02 06:33
VLAI
Title
FlexiHub IoControlCode fusbhub.sys 0x220088 null pointer dereference
Summary
A vulnerability classified as problematic has been found in FlexiHub 5.5.14691.0. This affects the function 0x220088 in the library fusbhub.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-229851. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
n/a FlexiHub Affected: 5.5.14691.0
Credits
Zeze7w (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2023-2871 (GCVE-0-2023-2871)

Vulnerability from cvelistv5 – Published: 2023-05-24 17:31 – Updated: 2024-11-22 18:06
VLAI
Title
FabulaTech USB for Remote Desktop IoControlCode 0x220408 null pointer dereference
Summary
A vulnerability was found in FabulaTech USB for Remote Desktop 6.1.0.0. It has been rated as problematic. Affected by this issue is the function 0x220448/0x220420/0x22040c/0x220408 of the component IoControlCode Handler. The manipulation leads to null pointer dereference. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. VDB-229850 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Credits
Zeze7w (VulDB User)
Show details on NVD website
To clipboard 

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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.

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