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.
6978 vulnerabilities reference this CWE, most recent first.
CVE-2026-1584 (GCVE-0-2026-1584)
Vulnerability from cvelistv5 – Published: 2026-04-09 18:00 – Updated: 2026-09-01 12:04
VLAI
EPSS
VEX
Title
Gnutls: gnutls: remote denial of service via crafted clienthello with invalid psk binder
Summary
A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 14:09 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:7477 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-1584 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2435258 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0
|
|||
| Red Hat | Red Hat Hardened Images |
Unaffected:
3.8.12-1.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-02-09 00:00
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CVE-2026-1417 (GCVE-0-2026-1417)
Vulnerability from cvelistv5 – Published: 2026-01-26 03:32 – Updated: 2026-02-23 08:56 X_Open Source
VLAI
EPSS
VEX
Title
GPAC filedump.c dump_isom_rtp null pointer dereference
Summary
A weakness has been identified in GPAC up to 2.4.0. Affected by this issue is the function dump_isom_rtp of the file applications/mp4box/filedump.c. This manipulation causes null pointer dereference. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. Patch name: f96bd57c3ccdcde4335a0be28cd3e8fe296993de. Applying a patch is the recommended action to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-26 15:21 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.342806 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.342806 | signaturepermissions-required |
| https://vuldb.com/?submit.736543 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3426 | issue-tracking |
| https://github.com/gpac/gpac/issues/3426#issue-38… | exploitissue-tracking |
| https://github.com/enocknt/gpac/commit/f96bd57c3c… | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-1416 (GCVE-0-2026-1416)
Vulnerability from cvelistv5 – Published: 2026-01-26 03:02 – Updated: 2026-02-23 08:55 X_Open Source
VLAI
EPSS
VEX
Title
GPAC filedump.c DumpMovieInfo null pointer dereference
Summary
A security flaw has been discovered in GPAC up to 2.4.0. Affected by this vulnerability is the function DumpMovieInfo of the file applications/mp4box/filedump.c. The manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is identified as d45c264c20addf0c1cc05124ede33f8ffa800e68. It is advisable to implement a patch to correct this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-26 15:26 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.342805 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.342805 | signaturepermissions-required |
| https://vuldb.com/?submit.736542 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3427 | issue-tracking |
| https://github.com/gpac/gpac/issues/3427#issue-38… | exploitissue-tracking |
| https://github.com/enocknt/gpac/commit/d45c264c20… | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-1415 (GCVE-0-2026-1415)
Vulnerability from cvelistv5 – Published: 2026-01-26 02:32 – Updated: 2026-02-23 08:55 X_Open Source
VLAI
EPSS
VEX
Title
GPAC media_export.c gf_media_export_webvtt_metadata null pointer dereference
Summary
A vulnerability was identified in GPAC up to 2.4.0. Affected is the function gf_media_export_webvtt_metadata of the file src/media_tools/media_export.c. The manipulation of the argument Name leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is af951b892dfbaaa38336ba2eba6d6a42c25810fd. To fix this issue, it is recommended to deploy a patch.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-26 15:27 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.342804 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.342804 | signaturepermissions-required |
| https://vuldb.com/?submit.736541 | third-party-advisory |
| https://github.com/gpac/gpac/issues/3428 | issue-tracking |
| https://github.com/gpac/gpac/issues/3428#issue-38… | exploitissue-tracking |
| https://github.com/enocknt/gpac/commit/af951b892d… | patch |
| https://github.com/gpac/gpac/ | product |
Impacted products
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CVE-2026-1288 (GCVE-0-2026-1288)
Vulnerability from cvelistv5 – Published: 2026-06-17 15:27 – Updated: 2026-06-17 17:30
VLAI
EPSS
VEX
Title
RFA File Parsing Vulnerability in Autodesk Revit
Summary
A maliciously crafted RFA file, when converted to FormIt via “Convert RFA to FormIt” in Autodesk Revit, can force a NULL Pointer Dereference vulnerability. Successful exploitation may cause the application to crash, leading to a denial-of-service condition.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 17:30 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.autodesk.com/trust/security-advisorie… | vendor-advisory |
| https://www.autodesk.com/products/autodesk-access… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Autodesk | Revit |
Affected:
2027.0.0 , < 2027.1.0
(semver)
Affected: 2026.0.0 , < 2026.4.1 (semver) Affected: 2025.0.0 , < 2025.4.5 (semver) Affected: 2024.0.0 , < 2024.3.5 (semver) cpe:2.3:a:autodesk:revit:2027.1:*:*:*:*:*:*:* cpe:2.3:a:autodesk:revit:2026.4.1:*:*:*:*:*:*:* cpe:2.3:a:autodesk:revit:2025.4.5:*:*:*:*:*:*:* cpe:2.3:a:autodesk:revit:2024.3.5:*:*:*:*:*:*:* |
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CVE-2026-0968 (GCVE-0-2026-0968)
Vulnerability from cvelistv5 – Published: 2026-03-26 20:06 – Updated: 2026-10-16 10:12
VLAI
EPSS
VEX
Title
Libssh: libssh: denial of service due to malformed sftp message
Summary
A flaw was found in libssh in which a malicious SFTP (SSH File Transfer Protocol) server can exploit this by sending a malformed 'longname' field within an `SSH_FXP_NAME` message during a file listing operation. This missing null check can lead to reading beyond allocated memory on the heap. This can cause unexpected behavior or lead to a denial of service (DoS) due to application crashes.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 20:21 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:18160 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:18683 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-0968 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2436982 | issue-trackingx_refsource_REDHAT |
| https://www.libssh.org/2026/02/10/libssh-0-12-0-a… |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:0.12.0-2.el10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:0.10.4-18.el9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
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Date Public
2026-02-10 18:46
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CVE-2026-0918 (GCVE-0-2026-0918)
Vulnerability from cvelistv5 – Published: 2026-01-27 17:52 – Updated: 2026-04-29 00:05
VLAI
EPSS
VEX
Title
Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS
Summary
The Tapo C100 v5, C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 18:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
7 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Tapo C220 v1 |
Affected:
0 , < 1.4.2 Build 251112
(custom)
|
|
| TP-Link Systems Inc. | Tapo C520WS v2 |
Affected:
0 , < 1.2.3 Build 251114
(custom)
|
|
| TP-Link Systems Inc. | Tapo C100 v5 |
Affected:
0 , < 1.4.3 Build 251128
(custom)
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CVE-2026-0731 (GCVE-0-2026-0731)
Vulnerability from cvelistv5 – Published: 2026-01-08 23:02 – Updated: 2026-02-23 08:24
VLAI
EPSS
VEX
Title
TOTOLINK WA1200 HTTP Request cstecgi.cgi null pointer dereference
Summary
A vulnerability has been found in TOTOLINK WA1200 5.9c.2914. The impacted element is an unknown function of the file cstecgi.cgi of the component HTTP Request Handler. The manipulation leads to null pointer dereference. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-09 16:23 UTC
Assigner
References
6 references
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| https://github.com/JackWesleyy/CVE/blob/main/WA12… | exploit |
| https://www.totolink.net/ | product |
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CVE-2026-0710 (GCVE-0-2026-0710)
Vulnerability from cvelistv5 – Published: 2026-01-23 03:47 – Updated: 2026-01-23 19:04
VLAI
EPSS
VEX
Title
Sipp/sipp: sipp: denial of service and potential arbitrary code execution vulnerability
Summary
A flaw was found in SIPp. A remote attacker could exploit this by sending specially crafted Session Initiation Protocol (SIP) messages during an active call. This vulnerability, a NULL pointer dereference, can cause the application to crash, leading to a denial of service. Under specific conditions, it may also allow an attacker to execute unauthorized code, compromising the system's integrity and availability.
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-23 19:03 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-0710 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2427788 | issue-trackingx_refsource_REDHAT |
Date Public
2026-01-08 00:00
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GCVE-1988-2026-0421
Vulnerability from gna-1988 – Published: 2026-10-02 04:57 – Updated: 2026-10-02 04:57
VLAI
EPSS
VEX
Title
[NotCVE-2026-0017] game-music-emu (libgme) 0.6.5 and Earlier AY Loader NULL Pointer Dereference Allows Denial of Service
Summary
----------------------------------------------------------------------------
NotCVE Advisory — NotCVE-2026-0017
----------------------------------------------------------------------------
[-] Summary:
A NULL pointer dereference in the AY file loader of game-music-emu
(libgme), the open-source video game music emulation library, allows an
attacker who supplies a crafted .ay file to terminate any application that
begins playback of it. CVSS:3.1 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).
[-] Affected:
game-music-emu (libgme) 0.6.5 and earlier (present in 0.6.0 and 0.6.5),
and master as of commit fe8da4b. Default builds; no fixed version is
verified.
[-] Technical Description:
get_data() resolves the format's internal 16-bit relative offsets and
returns 0 when an offset word is 0x0000, as well as when the target would
fall outside the file buffer. The data-block copy loop in
Ay_Emu::start_track_() (gme/Ay_Emu.cpp) uses that result without testing
it:
- the block's source pointer comes from get_data( file, blocks, 0 ) and
is never compared against NULL;
- the only guard before the copy, if ( len > uint32_t (file.end - in) ),
compares len against the low 32 bits of the buffer's end address when
in == NULL, so it does not reliably clamp;
- execution reaches memcpy( mem.ram + addr, in, len ) with in == NULL.
The process terminates with SIGSEGV. The invalid access is a read from
address 0, so no attacker-controlled data is read or written; the impact
is denial of service of the process that parses the file.
Reachability: the AY handler is part of a default build
(option(USE_GME_AY ... ON)) and is reached from the public entry point
gme_start_track() via Music_Emu::start_track(). The condition is a
two-byte field in an otherwise structurally valid file, so it survives
type detection and track enumeration. FFmpeg documents optional use of the
library; the researcher additionally names VLC, Kodi and Audacious as
consumers.
Commit ae10a8f ("Ay_Emu.cpp: Don't read farther than buffer allows",
July 2026) changed get_data() to return 0 instead of asserting when the
pointer is out of range. That widens the set of inputs that produce a NULL
return in release builds and does not add the missing check.
Weaknesses:
CWE-476: NULL Pointer Dereference
CWE-252: Unchecked Return Value
CAPEC-165: File Manipulation
[-] Credit:
Discovered by netspacer1124 (https://github.com/netspacer1124).
[-] Full Details and Updates:
https://notcve.org/notcve/NotCVE-2026-0017
[-] Main References:
https://github.com/libgme/game-music-emu
https://github.com/libgme/game-music-emu/blob/0.6.5/gme/Ay_Emu.cpp
https://github.com/libgme/game-music-emu/commit/ae10a8f
[-] About NotCVE:
NotCVE (https://notcve.org) assigns public, timestamped NotCVE IDs to
vulnerabilities not acknowledged by vendors. Vendor will not assign a CVE?
Request a NotCVE: https://notcve.org/form/ · Contributors:
https://notcve.org/hall/
_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: https://seclists.org/fulldisclosure/
Severity
No CVSS data available.
Assigner
References
12 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| unknown | game-music-emu libgme |
Affected:
unknown
|
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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.