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.

1661 vulnerabilities reference this CWE, most recent first.

CVE-2026-24929 (GCVE-0-2026-24929)

Vulnerability from cvelistv5 – Published: 2026-02-06 08:41 – Updated: 2026-02-06 16:36
VLAI
Summary
Out-of-bounds read vulnerability in the graphics module. Impact: Successful exploitation of this vulnerability may affect availability.
Severity
5.9 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-06 16:35 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
huawei CNA
References
Impacted products
Vendor Product Version
Huawei HarmonyOS Affected: 6.0.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-24918 (GCVE-0-2026-24918)

Vulnerability from cvelistv5 – Published: 2026-02-06 08:29 – Updated: 2026-02-06 16:54
VLAI
Summary
Address read vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.
Severity
6.8 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-06 16:54 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
huawei CNA
References
Impacted products
Vendor Product Version
Huawei HarmonyOS Affected: 5.1.0
Affected: 6.0.0
Affected: 4.3.1
Create a notification for this product.
Huawei EMUI Affected: 15.0.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-24883 (GCVE-0-2026-24883)

Vulnerability from cvelistv5 – Published: 2026-01-27 18:43 – Updated: 2026-01-28 15:52
VLAI
Summary
In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 20:02 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
mitre CNA
References
Impacted products
Vendor Product Version
GnuPG GnuPG Affected: 2.5.3 , < 2.5.17 (semver)
    cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*
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CVE-2026-24826 (GCVE-0-2026-24826)

Vulnerability from cvelistv5 – Published: 2026-01-27 09:11 – Updated: 2026-01-29 20:03
VLAI
Title
Out-of-bounds write in turso3d
Summary
Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read, Reachable Assertion vulnerability in cadaver turso3d.This issue affects .
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-29 20:03 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
cadaver turso3d Affected: 0 (git)
Create a notification for this product.
Credits
TITAN Team (titancaproject@gmail.com)
Show details on NVD website
To clipboard 

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CVE-2026-24813 (GCVE-0-2026-24813)

Vulnerability from cvelistv5 – Published: 2026-01-27 08:49 – Updated: 2026-01-27 14:45
VLAI
Title
A null pointer dereference in abcz316/SKRoot-linuxKernelRoot
Summary
NULL Pointer Dereference vulnerability in abcz316 SKRoot-linuxKernelRoot (testRoot/jni/utils modules). This vulnerability is associated with program files cJSON.Cpp. This issue affects SKRoot-linuxKernelRoot.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/S:N/AU:Y/R:U/V:D/RE:L/U:Amber
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 14:45 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Credits
TITAN Team (titancaproject@gmail.com)
Show details on NVD website
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CVE-2026-24805 (GCVE-0-2026-24805)

Vulnerability from cvelistv5 – Published: 2026-01-27 08:41 – Updated: 2026-01-27 20:47
VLAI
Title
Mishandles certain out-of-memory conditions in visualfc/liteide via liteidex/src/3rdparty/libvterm/src module
Summary
NULL Pointer Dereference vulnerability in visualfc liteide (liteidex/src/3rdparty/libvterm/src modules). This vulnerability is associated with program files screen.C, state.C, vterm.C. This issue affects liteide: before x38.4.
Severity
6.7 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:D/RE:L/U:Amber
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 20:47 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
visualfc liteide Affected: 0 , < x38.4 (git)
Create a notification for this product.
Credits
TITAN Team (titancaproject@gmail.com)
Show details on NVD website
To clipboard 

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CVE-2026-24723 (GCVE-0-2026-24723)

Vulnerability from cvelistv5 – Published: 2026-10-15 06:59 – Updated: 2026-10-15 14:50
VLAI
Title
NULL Pointer Dereference in utilRequest.cgi
Summary
A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user 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: File Station 5 5.5.6.5243 and later
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:49 UTC
CWE
Assigner
qnap CNA
References
Impacted products
Vendor Product Version
QNAP Systems Inc. File Station 5 Affected: 5.5.x , < 5.5.6.5243 (custom)
Create a notification for this product.
Credits
coral
Show details on NVD website
To clipboard 

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CVE-2026-24722 (GCVE-0-2026-24722)

Vulnerability from cvelistv5 – Published: 2026-10-15 06:59 – Updated: 2026-10-15 14:51
VLAI
Title
Null Pointer Dereference in File Station 5
Summary
A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user 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: File Station 5 5.5.6.5243 and later
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:51 UTC
CWE
Assigner
qnap CNA
References
Impacted products
Vendor Product Version
QNAP Systems Inc. File Station 5 Affected: 5.5.x , < 5.5.6.5243 (custom)
Create a notification for this product.
Credits
coral
Show details on NVD website
To clipboard 

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CVE-2026-24721 (GCVE-0-2026-24721)

Vulnerability from cvelistv5 – Published: 2026-10-15 06:59 – Updated: 2026-10-15 14:51
VLAI
Title
Null Pointer Dereference in File Station 5
Summary
A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user 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: File Station 5 5.5.6.5243 and later
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:51 UTC
CWE
Assigner
qnap CNA
References
Impacted products
Vendor Product Version
QNAP Systems Inc. File Station 5 Affected: 5.5.x , < 5.5.6.5243 (custom)
Create a notification for this product.
Credits
coral
Show details on NVD website
To clipboard 

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CVE-2026-24716 (GCVE-0-2026-24716)

Vulnerability from cvelistv5 – Published: 2026-06-10 03:08 – Updated: 2026-06-30 01:46
VLAI
Title
QTS, QuTS hero
Summary
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. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3492 build 20260507 and later QuTS hero h5.2.9.3499 build 20260514 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3459 build 20260409 and later
Severity
1.2 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 15:42 UTC
CWE
Assigner
qnap CNA
References
Impacted products
Vendor Product Version
QNAP Systems Inc. QTS Affected: 5.2.0 , < 5.2.9.3492 build 20260507 (custom)
Create a notification for this product.
QNAP Systems Inc. QuTS hero Affected: h5.2.0 , < h5.2.9.3499 build 20260514 (custom)
Affected: h5.3.0 , < h5.3.4.3500 build 20260520 (custom)
Affected: ? , < h6.0.0.3459 build 20260409 (custom)
Create a notification for this product.
Credits
coral
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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