Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

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

6515 vulnerabilities reference this CWE, most recent first.

CVE-2026-78148 (GCVE-0-2026-78148)

Vulnerability from cvelistv5 – Published: 2026-08-23 23:15 – Updated: 2026-08-24 17:49
VLAI
Title
ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp graph_compute null pointer dereference
Summary
A vulnerability was determined in ggml-org llama.cpp bec4772f6. This affects the function rpc_server::graph_compute of the file ggml/src/ggml-rpc/ggml-rpc.cpp of the component ggml-RPC Server. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The pull request to fix this issue awaits acceptance.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 17:48 UTC
CWE
References
Impacted products
Vendor Product Version
ggml-org llama.cpp Affected: bec4772f6
    cpe:2.3:a:ggml-org:llama.cpp:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-76928 (GCVE-0-2026-76928)

Vulnerability from cvelistv5 – Published: 2026-08-19 23:00 – Updated: 2026-08-20 16:27
VLAI
Title
NULL Pointer Dereference in Wireshark
Summary
X.509IF protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 16:03 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.8 (semver)
Affected: 4.4.0 , < 4.4.18 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-76927 (GCVE-0-2026-76927)

Vulnerability from cvelistv5 – Published: 2026-08-19 23:00 – Updated: 2026-08-20 15:26
VLAI
Title
NULL Pointer Dereference in Wireshark
Summary
H.245 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:06 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.8 (semver)
Affected: 4.4.0 , < 4.4.18 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-76922 (GCVE-0-2026-76922)

Vulnerability from cvelistv5 – Published: 2026-08-19 22:45 – Updated: 2026-08-20 15:26
VLAI
Title
NULL Pointer Dereference in Wireshark
Summary
Bluetooth BR/EDR FHS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:07 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.8 (semver)
Affected: 4.4.0 , < 4.4.18 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-76905 (GCVE-0-2026-76905)

Vulnerability from cvelistv5 – Published: 2026-08-21 20:43 – Updated: 2026-08-21 20:43
VLAI
Title
kin-openapi openai3filter: nil-pointer panic in ConvertErrors on malformed multipart/form-data body enables unauthenticated DoS
Summary
kin-openapi is a Go project for handling OpenAPI files. From 0.10.0 until 0.141.0, openapi3filter.convertParseError in openapi3filter/validation_error_encoder.go dereferences e.Parameter.In without checking whether e.Parameter is nil. A malformed non-string scalar field in a multipart/form-data request body produces a nested ParseError with a nil RequestError.Parameter, and applications that render the validation error through openapi3filter.ConvertErrors or ValidationErrorEncoder panic. An unauthenticated client can repeatedly send such requests to deny service when the application lacks a recovery boundary. JSON request bodies and applications that do not use these error-rendering helpers are not affected. This issue is fixed in version 0.141.0.
CWE
  • CWE-476 - NULL Pointer Dereference
Impacted products
Vendor Product Version
getkin kin-openapi Affected: >= 0.10.0, < 0.141.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-76881 (GCVE-0-2026-76881)

Vulnerability from cvelistv5 – Published: 2026-08-19 22:34 – Updated: 2026-08-20 15:00
VLAI
Title
NULL Pointer Dereference in Wireshark
Summary
CMS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:00 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.8 (semver)
Affected: 4.4.0 , < 4.4.18 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-76166 (GCVE-0-2026-76166)

Vulnerability from cvelistv5 – Published: 2026-08-19 10:01 – Updated: 2026-08-20 15:23
VLAI
Title
Modcluster-core: mod_cluster advertise listener: unauthenticated dos via crafted multicast datagram
Summary
A flaw was found in mod_cluster's AdvertiseListenerImpl (org.jboss.modcluster core module). A single crafted UDP multicast datagram with a valid HTTP status line and a "Server:" header but without the "Date:", "Digest:", and "Sequence:" headers triggers a NullPointerException in verifyDigest() that is not caught by the worker thread's exception handler. This causes the advertise listener thread to terminate permanently. The failure is silent (isListening() continues to return true) and persists until the node is restarted. The crash occurs before the AdvertiseSecurityKey comparison, so deployments with a configured security key are still affected.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:19 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-76166 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2510883 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-08-04 00:00
Show details on NVD website

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CVE-2026-76014 (GCVE-0-2026-76014)

Vulnerability from cvelistv5 – Published: 2026-08-19 02:45 – Updated: 2026-08-25 01:49 X_Open Source
VLAI
Title
BusyBox FEATURE_WGET_TIMEOUT wget.c null pointer dereference
Summary
A vulnerability has been found in BusyBox up to 1.30.1. This vulnerability affects unknown code of the file networking/wget.c of the component FEATURE_WGET_TIMEOUT Handler. Such manipulation of the argument -T leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The name of the patch is 83a40bf7a93c8ac093d33ab452222dd5b9eb57ff. A patch should be applied to remediate this issue.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 01:49 UTC
CWE
Impacted products
Vendor Product Version
n/a BusyBox Affected: 1.30.0
Affected: 1.30.1
    cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*
Show details on NVD website

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CVE-2026-75618 (GCVE-0-2026-75618)

Vulnerability from cvelistv5 – Published: 2026-08-19 18:30 – Updated: 2026-08-19 19:33
VLAI
Title
RTSP Null Pointer Dereference Denial-of-Service Vulnerability on TP-Link Tapo C100 and C101
Summary
Tapo C100/C101 V5 contains a null pointer dereference vulnerability in the RTSP service. An attacker on the local network can send specially crafted requests that cause the service to dereference an invalid pointer, resulting in a service crash and device reboot. Successful exploitation can disrupt live video streaming functionality and cause a temporary denial-of-service condition.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 19:32 UTC
CWE
  • CWE-476 - NULL pointer dereference
Impacted products
Vendor Product Version
TP-Link Systems Inc. Tapo C100 v5 Affected: 0 , < 1.5.4 Build 260528 Rel.11462n (custom)
Create a notification for this product.
TP-Link Systems Inc. Tapo C101 v5 Affected: 0 , < 1.5.4 Build 260528 Rel.11462n (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-75013 (GCVE-0-2026-75013)

Vulnerability from cvelistv5 – Published: 2026-08-17 19:30 – Updated: 2026-08-18 14:54
VLAI
Title
TOTOLINK EX1200L cstecgi.cgi setWizardCfg null pointer dereference
Summary
A vulnerability was detected in TOTOLINK EX1200L 9.3.5u.6146_B20201023. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi. The manipulation results in null pointer dereference. The attack can be launched remotely. The exploit is now public and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:54 UTC
CWE
References
Impacted products
Vendor Product Version
TOTOLINK EX1200L Affected: 9.3.5u.6146_B20201023
    cpe:2.3:a:totolink:ex1200l:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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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.