Gold Open Source
ExplorePackagesVulnerabilitiesMCP Servers
Login
Gold Open Source

The authoritative source for production-ready open-source components. Every package, container image, AI model, and MCP server undergoes rigorous verification for security, malware, and license compliance.

Explore Gold

  • Explore Everything
  • Packages
  • Gold Packages
  • Container Images
  • AI Models
  • MCP Servers
  • Agent Skills
  • Chip Manufacturers

Security Data & Tools

  • Scan Your Dependencies
  • Trending Threats
  • Threat RSS Feeds
  • CVE Database
  • Actively Exploited (KEV)
  • SGZ Zero-Days
  • CWE Index
  • MITRE ATT&CK
  • Malicious Packages
  • Security Glossary
  • Supply-Chain Report
  • Developers (API & Badge)
  • Chrome Extension
  • Credits & Data Sources

Products

  • The Platform
  • ESSCM
  • Portal
  • TPRM
  • OSM
  • Cowork
  • Code / Runner
  • Guard

Use Cases

  • Know Your Software
  • Auto-Fix Vulnerabilities
  • Asset Discovery
  • AI Governance
  • MCP Server Security
  • Supply Chain Compliance
  • Zero-Day Discovery
  • All Use Cases

Company

  • About
  • Pricing
  • Blog
  • Documentation
  • Safeguard Academy
  • Contact
  • Privacy Policy
  • Terms of Service

© 2026 Gold Open Source. All rights reserved.

Built with care bySafeguard
Home/CWEs/CWE-476
Common Weakness Enumeration

CWE-476: NULL Pointer Dereference

ShareXLinkedInRedditHN

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

Abstraction
Base
OWASP Top 10
A06:2021 (#6)
Exploit Likelihood
Medium
Related CVEs
87

How to mitigate

Check returns before dereference; use option types where the language offers them.

▪ References & documentation

https://cwe.mitre.org/data/definitions/476.htmlNVD CWE listing

▪ Related CVEs

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2017-9229High

Security vulnerability in ruby

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2012-2039Critical

Security vulnerability in air

CVE-2023-37186High

Security vulnerability in c-blosc2

CVE-2023-37187High

Security vulnerability in c-blosc2

CVE-2023-37188High

Security vulnerability in c-blosc2

CVE-2023-37185High

Security vulnerability in c-blosc2

CVE-2016-7079High

Security vulnerability in tools

CVE-2016-7080High

Security vulnerability in tools

CVE-2011-1802Medium

Security vulnerability in blink

CVE-2026-75805Medium

Security vulnerability in openssl

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2022-3358High

Security vulnerability in openssl

CVE-2023-0216High

Security vulnerability in openssl

CVE-2023-0401High

Security vulnerability in openssl

CVE-2023-0217High

Security vulnerability in openssl

CVE-2025-15468Medium

Security vulnerability in openssl

CVE-2025-11187Medium

Security vulnerability in openssl

CVE-2026-14457High

Security vulnerability in openssl

CVE-2026-63076High

Security vulnerability in openssl

CVE-2026-42764High

Security vulnerability in openssl

CVE-2026-42765High

Security vulnerability in openssl

CVE-2026-42767Medium

Security vulnerability in openssl

CVE-2026-28388High

Security vulnerability in openssl

CVE-2026-28389High

Security vulnerability in openssl

CVE-2024-0727Medium

Security vulnerability in openssl

CVE-2009-1387Medium

Security vulnerability in openssl

CVE-2021-23841Medium

Security vulnerability in openssl

CVE-2020-1971Medium

Security vulnerability in openssl

CVE-2021-3449Medium

Security vulnerability in openssl

CVE-2014-3470Medium

Security vulnerability in openssl

CVE-2009-1386Medium

Security vulnerability in openssl

CVE-2026-28390High

Security vulnerability in openssl

CVE-2026-42766Medium

Security vulnerability in openssl

CVE-2020-1967High

Security vulnerability in openssl

CVE-2014-0198Medium

Security vulnerability in openssl

CVE-2025-69421High

Security vulnerability in openssl

CVE-2018-1000121High

Security vulnerability in curl

CVE-2024-26130High

Security vulnerability in cryptography

CVE-2023-49083Medium

Security vulnerability in cryptography

GHSA-6vqw-3v5j-54x4High

Security vulnerability in cryptography

GHSA-jfhm-5ghh-2f97Medium

Security vulnerability in cryptography

CVE-2026-28388High

Security vulnerability in openssl

CVE-2024-0727Medium

Security vulnerability in openssl

CVE-2026-42764High

Security vulnerability in openssl

CVE-2026-63076High

Security vulnerability in openssl

CVE-2021-23841Medium

Security vulnerability in openssl

CVE-2025-69421High

Security vulnerability in openssl

CVE-2023-0217High

Security vulnerability in openssl

CVE-2023-0401High

Security vulnerability in openssl

CVE-2025-15468Medium

Security vulnerability in openssl

CVE-2020-1971Medium

Security vulnerability in openssl

CVE-2021-3449Medium

Security vulnerability in openssl

CVE-2022-3358High

Security vulnerability in openssl

CVE-2014-0198Medium

Security vulnerability in openssl

CVE-2009-1386Medium

Security vulnerability in openssl

CVE-2009-1387Medium

Security vulnerability in openssl

CVE-2026-28389High

Security vulnerability in openssl

CVE-2026-28390High

Security vulnerability in openssl

CVE-2026-14457High

Security vulnerability in openssl

CVE-2026-42766Medium

Security vulnerability in openssl

CVE-2023-0216High

Security vulnerability in openssl

CVE-2025-11187Medium

Security vulnerability in openssl

CVE-2020-1967High

Security vulnerability in openssl

CVE-2014-3470Medium

Security vulnerability in openssl

CVE-2026-42765High

Security vulnerability in openssl

CVE-2026-42767Medium

Security vulnerability in openssl

CVE-2024-47458Medium

Security vulnerability in bridge

CVE-2021-42733Medium

Security vulnerability in bridge

CVE-2021-40750Medium

Security vulnerability in bridge

CVE-2019-7151Medium

Security vulnerability in binaryen

CVE-2019-7153Medium

Security vulnerability in binaryen

CVE-2019-15759Medium

Security vulnerability in binaryen

CVE-2019-7702Medium

Security vulnerability in binaryen

CVE-2026-57434High

Security vulnerability in nokogiri

CVE-2012-2039Critical

Security vulnerability in air

CVE-2020-23911Medium

Security vulnerability in asn1c

CVE-2011-2691Medium

Security vulnerability in LibPng

CVE-2019-8379High

Security vulnerability in advancecomp