CWE-476 5435 CVEs MITRE definition ↗

CWE-476: NULL Pointer Dereference

Overview

CWE-476 (NULL Pointer Dereference) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.

Security impact
Security impact: Depends on product and context; use CVE records, severity scores, and MITRE guidance to prioritize.

Description

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

Applicable platforms

Kind Name Class Prevalence OS / CPE
language C Undetermined
language C++ Undetermined
language Java Undetermined
language C# Undetermined
language Go Undetermined

Related CVEs in this database

These CVEs are mapped to this weakness in this database and kept for traceability and search.

CVE Published Summary
CVE-2026-13070 2026-07-22 A MongoDB server initiating an outbound TLS connection may terminate abnormally when processing a malformed OCSP response from a remote peer during the TLS handshake. OCSP stapling validation is enabl…
CVE-2026-13065 2026-07-22 A user with read-only privileges is able to craft an aggregation pipeline using the $linearFill window function operator with a specific sortBy expression type to cause the mongod process to terminate…
CVE-2026-55717 2026-07-22 In NLnet Labs Unbound 1.10.0 up to and including 1.25.1, when 'serve-expired: yes' is set together with a 'response-ip: <net> redirect' /'response-ip-data: <net> CNAME <target>' rule (or the RPZ 'rpz-…
CVE-2026-47709 2026-07-21 libheif is a HEIF and AVIF file format decoder and encoder. Versions prior to 1.22.0 crashes in the public C API `heif_image_handle_get_image_tiling()` when a malformed uncompressed HEIF image item ha…
CVE-2026-10678 2026-07-21 The MCTP-over-I2C+GPIO target binding in Zephyr (subsys/pmci/mctp/mctp_i2c_gpio_target.c) processes pseudo-register writes from an I2C bus master byte-by-byte in mctp_i2c_gpio_target_write_received() …
CVE-2026-47143 2026-07-21 Capstone is a disassembly framework. Versions prior to 6.0.0-Alpha8 and 5.0.8 have a NULL pointer dereference in `modRMRequired()` and `decode()` when disassembling 3DNow! opcodes (`0F 0F`) in builds …
CVE-2026-16353 2026-07-21 Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
CVE-2026-47276 2026-07-20 In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in `properties_parse()` allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to `/api/v4/mqtt/publis…
CVE-2026-47275 2026-07-20 In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in `nni_mqttv5_msg_decode_connect()` allows a malicious MQTT broker to crash any connecting NanoMQ MQTTv5 client (including bridge mo…
CVE-2026-63762 2026-07-20 SurrealDB before v2.6.1 (and before v3.0.0-beta.3) contains a denial of service vulnerability in its embedded JavaScript scripting engine, which is enabled via the --allow-scripting capability (disabl…
CVE-2026-62309 2026-07-16 CoreDNS is a DNS server written in Go. Prior to 1.14.4, a single 28-byte UDP datagram can crash the CoreDNS process when the proxyproto plugin is enabled because plugin/pkg/proxyproto/proxyproto.go Pa…
CVE-2026-62299 2026-07-16 CoreDNS is a DNS server written in Go. Prior to 1.14.5, the CoreDNS rewrite plugin supports edns0 rewrite rules with an optional revert flag, and two response rules, edns0SetResponseRule and edns0Repl…
CVE-2026-15352 2026-07-16 A vulnerability exists in the Health & Safety (HS) application of NASA's Core Flight System (cFS). The flaw allows the application to crash via segmentation fault when processing a routine Housekeepin…
CVE-2026-52865 2026-07-15 When NGINX Ingress Controller processes Ingress or TransportServer resources, an authenticated, remote attacker with permission to create or modify Ingress or TransportServer resources can cause the N…
CVE-2025-56363 2026-07-14 A null pointer dereference vulnerability exists in the Matter SDK (connectedhomeip) before 1.4.0, affecting the ReadRevisionAttribute function used in multiple clusters (Channel, Account Login, Target…
CVE-2026-56168 2026-07-14 Null pointer dereference in Windows SMB Server allows an authorized attacker to deny service over a network.
CVE-2026-50673 2026-07-14 Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50366 2026-07-14 Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.
CVE-2026-50315 2026-07-14 Null pointer dereference in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.
CVE-2026-57976 2026-07-14 Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

Content submission

Name
7 Pernicious Kingdoms
Date
2006-07-19
Version
Draft 3

Content modifications

Date Name Version Importance Comment
2008-07-01 Eric Dalci 1.0 updated Time_of_Introduction
2008-08-01 1.0 added/updated white box definitions
2008-09-08 CWE Content Team 1.0 updated Applicable_Platforms, Common_Consequences, Relationships, Other_Notes, Taxonomy_Mappings, Weakness_Ordinalities
2008-11-24 CWE Content Team 1.1 updated Relationships, Taxonomy_Mappings
2009-05-27 CWE Content Team 1.4 updated Demonstrative_Examples
2009-10-29 CWE Content Team 1.6 updated Relationships
2009-12-28 CWE Content Team 1.7 updated Common_Consequences, Demonstrative_Examples, Other_Notes, Potential_Mitigations, Weakness_Ordinalities
2010-02-16 CWE Content Team 1.8 updated Potential_Mitigations, Relationships
2010-06-21 CWE Content Team 1.9 updated Demonstrative_Examples, Description, Detection_Factors, Potential_Mitigations
2010-09-27 CWE Content Team 1.10 updated Demonstrative_Examples, Observed_Examples, Relationships
2010-12-13 CWE Content Team 1.11 updated Relationships
2011-06-01 CWE Content Team 1.13 updated Common_Consequences
2011-06-27 CWE Content Team 2.0 updated Related_Attack_Patterns, Relationships
2011-09-13 CWE Content Team 2.1 updated Relationships, Taxonomy_Mappings
2012-05-11 CWE Content Team 2.2 updated Observed_Examples, Related_Attack_Patterns, Relationships
2014-02-18 CWE Content Team 2.6 updated Demonstrative_Examples
2014-07-30 CWE Content Team 2.8 updated Relationships, Taxonomy_Mappings
2015-12-07 CWE Content Team 2.9 updated Relationships
2017-01-19 CWE Content Team 2.10 updated Relationships
2017-11-08 CWE Content Team 3.0 updated Relationships, Taxonomy_Mappings, White_Box_Definitions
2019-01-03 CWE Content Team 3.2 updated Relationships
2019-06-20 CWE Content Team 3.3 updated Relationships
2019-09-19 CWE Content Team 3.4 updated References, Relationships
2020-02-24 CWE Content Team 4.0 updated References
2020-06-25 CWE Content Team 4.1 updated Common_Consequences
2020-08-20 CWE Content Team 4.2 updated Relationships
2020-12-10 CWE Content Team 4.3 updated Relationships
2021-03-15 CWE Content Team 4.4 updated Demonstrative_Examples, Observed_Examples
2021-07-20 CWE Content Team 4.5 updated Relationships
2022-04-28 CWE Content Team 4.7 updated Alternate_Terms
2022-06-28 CWE Content Team 4.8 updated Relationships
2022-10-13 CWE Content Team 4.9 updated Alternate_Terms, Applicable_Platforms, Observed_Examples
2023-04-27 CWE Content Team 4.11 updated Demonstrative_Examples, Detection_Factors, References, Relationships
2023-06-29 CWE Content Team 4.12 updated Mapping_Notes, Relationships
2023-10-26 CWE Content Team 4.13 updated Observed_Examples
2024-07-16 CWE Content Team 4.15 updated Alternate_Terms, Demonstrative_Examples, Description, Diagram, Potential_Mitigations, Relationships, Weakness_Ordinalities
2024-11-19 CWE Content Team 4.16 updated Relationships
2025-04-03 CWE Content Team 4.17 updated Demonstrative_Examples, Potential_Mitigations
2025-09-09 CWE Content Team 4.18 updated Potential_Mitigations, References
2025-12-11 CWE Content Team 4.19 updated Detection_Factors, Observed_Examples, References, Relationships

Contributions

Type Name Date Comment
Content Abhi Balakrishnan 2024-02-29 Provided diagram to improve CWE usability
cvelogic Threat Intelligence