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.
6727 vulnerabilities reference this CWE, most recent first.
CVE-2026-90485 (GCVE-0-2026-90485)
Vulnerability from cvelistv5 – Published: 2026-09-12 21:15 – Updated: 2026-09-14 18:21 X_Freeware
VLAI
EPSS
VEX
Title
IOBit Uninstaller IOCTL Dispatch IURegistryFilter.sys sub_11838 null pointer dereference
Summary
A flaw has been found in IOBit Uninstaller 15.5.0.11. Affected by this issue is the function sub_11838 of the file IURegistryFilter.sys of the component IOCTL Dispatch Handler. This manipulation causes null pointer dereference. The attack requires local access. The exploit has been published and may be used. Identical IURegistryFilter.sys ships across multiple IObit families. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 18:20 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403064 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403064/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90485 | third-party-advisory |
| https://vuldb.com/submit/887954 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IOBit | Uninstaller |
Affected:
15.5.0.11
cpe:2.3:a:iobit:uninstaller:*:*:*:*:*:*:*:* |
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CVE-2026-87117 (GCVE-0-2026-87117)
Vulnerability from cvelistv5 – Published: 2026-10-02 11:43 – Updated: 2026-10-02 11:43
VLAI
EPSS
VEX
Title
Apache Thrift: PHP `thrift_protocol` accelerator dereferences a missing container-element spec
Summary
NULL pointer dereference vulnerability in Apache Thrift PHP bindings.
This issue affects Apache Thrift: before 0.25.0.
Users are recommended to upgrade to version 0.25.0, which fixes the issue.
Severity
CWE
- CWE-476 - NULL pointer dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/33otcgbqd27wf6qq8… | vendor-advisory |
| https://lists.apache.org/thread/y05tvpv19ow44j16g… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Thrift |
Affected:
0 , < 0.25.0
(semver)
|
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CVE-2026-86547 (GCVE-0-2026-86547)
Vulnerability from cvelistv5 – Published: 2026-09-09 10:07 – Updated: 2026-09-09 12:41
VLAI
EPSS
VEX
Title
mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER
Summary
mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the op_enter() handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OP_ENTER instructions at the top level to crash the embedding application and cause denial of service.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 12:41 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/mrubyc/mrubyc/blob/release4.0.… | technical-description |
| https://github.com/mrubyc/mrubyc/blob/4261cf5e5ae… | technical-description |
| https://www.vulncheck.com/advisories/mrubyc-throu… | third-party-advisory |
Date Public
2026-09-07 00:00
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CVE-2026-86136 (GCVE-0-2026-86136)
Vulnerability from cvelistv5 – Published: 2026-09-29 23:05 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
Fireware OS Missing Authorization in wgagent Management API Allows Denial of Service - Variant A
Summary
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:42 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-86136 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2026.0 , < 2026.3.2
(custom)
Affected: 2025.0 , < 2026.2.3 (custom) Affected: 12.0 , < 12.12.3 (custom) |
|
| WatchGuard | Fireware OS |
Affected:
12.0 , < 12.5.21
(custom)
|
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CVE-2026-86134 (GCVE-0-2026-86134)
Vulnerability from cvelistv5 – Published: 2026-09-30 03:37 – Updated: 2026-09-30 14:38
VLAI
EPSS
VEX
Title
Fireware OS Pre-Authentication NULL Pointer Dereference Allows Remote Denial of Service
Summary
A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:38 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-86134 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2026.3 , < 2026.3.2
(custom)
Affected: 2025.0 , < 2026.2.3 (custom) Affected: 12.0 , < 12.12.3 (custom) |
|
| WatchGuard | Fireware OS |
Affected:
12.0 , < 12.5.21
(custom)
|
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CVE-2026-86128 (GCVE-0-2026-86128)
Vulnerability from cvelistv5 – Published: 2026-09-29 23:05 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
Fireware OS NULL Pointer Dereference in NetFlow IPv6 Traffic Processing Allows Remote Denial of Service
Summary
A NULL pointer dereference vulnerability in Fireware OS's NetFlow packet-processing feature allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted IPv6 packet.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 14:41 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-86128 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2026.3 , < 2026.3.2
(custom)
Affected: 2025.0 , < 2026.2.3 (custom) Affected: 12.0 , < 12.12.3 (custom) |
|
| WatchGuard | Fireware OS |
Affected:
12.0 , < 12.5.21
(custom)
|
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CVE-2026-86097 (GCVE-0-2026-86097)
Vulnerability from cvelistv5 – Published: 2026-09-04 22:38 – Updated: 2026-09-08 13:02
VLAI
EPSS
VEX
Title
PX4 Autopilot through 1.17.0 Null Pointer Dereference via param select
Summary
PX4 Autopilot through 1.17.0 contains a null pointer dereference vulnerability in param_set_default_file() and param_set_backup_file() functions that allows attackers to crash the autopilot process. Attackers can invoke 'param select' or 'param select-backup' commands with no path argument from any PX4 shell to trigger the crash.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 13:02 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/PX4/PX4-Autopilot/pull/28475 | patchissue-tracking |
| https://github.com/PX4/PX4-Autopilot/commit/02eab… | patch |
| https://github.com/PX4/PX4-Autopilot | product |
| https://github.com/PX4/PX4-Autopilot/blob/v1.17.0… | technical-description |
| https://www.vulncheck.com/advisories/px4-autopilo… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PX4 | PX4-Autopilot |
Affected:
0 , ≤ 1.17.0
(semver)
cpe:2.3:a:px4:autopilot:*:*:*:*:*:*:*:* |
Date Public
2026-08-31 00:00
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CVE-2026-86056 (GCVE-0-2026-86056)
Vulnerability from cvelistv5 – Published: 2026-09-22 17:14 – Updated: 2026-09-22 17:40
VLAI
EPSS
VEX
Title
Notepad++: Null pointer dereference in NPPM_SAVESESSION message handler causes crash (DoS)
Summary
Notepad++ is a free and open-source source code editor. Prior to 8.9.8, the NPPM_SAVESESSION handler in PowerEditor/src/NppBigSwitch.cpp converts lParam to a sessionInfo pointer and dereferences its nbFile, files, and sessionFilePathName members without checking for null. A process running at the same or a higher Windows integrity level on the same desktop can send NPPM_SAVESESSION with a null lParam, immediately terminating Notepad++ and causing denial of service and loss of unsaved documents. This issue is fixed in version 8.9.8.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 17:40 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/notepad-plus-plus/notepad-plus… | x_refsource_CONFIRM |
| https://github.com/notepad-plus-plus/notepad-plus… | x_refsource_MISC |
| https://github.com/notepad-plus-plus/notepad-plus… | x_refsource_MISC |
| https://notepad-plus-plus.org/news/v898-released | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| notepad-plus-plus | notepad-plus-plus |
Affected:
< 8.9.8
|
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CVE-2026-85150 (GCVE-0-2026-85150)
Vulnerability from cvelistv5 – Published: 2026-09-03 10:47 – Updated: 2026-09-21 17:18
VLAI
EPSS
VEX
Title
Gstreamer1-plugins-base: gstreamer: null/invalid-pointer dereference in gst_rtsp_message_parse_auth_credentials() when parsing a crafted digest authorization/www-authenticate header
Summary
A NULL pointer dereference flaw was found in GStreamer's RTSP support library. The vulnerability occurs while parsing an Authorization or WWW-Authenticate header that uses Digest authentication. Specially crafted whitespace placement around a parameter's terminator can cause an internal length calculation to underflow, leading to a crash of the process parsing the header. On an RTSP server this can be triggered by a remote, unauthenticated attacker sending a single malformed request when the server has authentication enabled; the same flaw can also be triggered against an RTSP client by a malicious or compromised RTSP server. Successful exploitation results in a denial of service (application crash) and has no confirmed impact on confidentiality or integrity.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 12:33 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:66460 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:67145 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:69100 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-85150 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2527936 | issue-trackingx_refsource_REDHAT |
| https://gitlab.freedesktop.org/gstreamer/gstreame… | |
| https://gitlab.freedesktop.org/gstreamer/gstreame… |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:1.26.7-2.el10_2.2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:1.16.1-7.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:1.22.12-8.el9_8.2 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
Date Public
2026-09-03 10:25
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CVE-2026-84396 (GCVE-0-2026-84396)
Vulnerability from cvelistv5 – Published: 2026-09-22 18:33 – Updated: 2026-09-26 00:02
VLAI
EPSS
VEX
Title
InDesign Desktop | NULL Pointer Dereference (CWE-476)
Summary
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Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-26 00:02 UTC
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/indesig… | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | InDesign Desktop |
Affected:
0 , ≤ 21.5
(semver)
Unaffected: 21.6 (semver) |
|
| Adobe | InDesign Desktop |
Affected:
0 , ≤ 20.5.4
(semver)
Unaffected: 20.5.5 (semver) |
Date Public
2026-09-22 17:00
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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.