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Untriaged
Permalink CVE-2026-56209
7.1 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): High (H)
created 12 hours ago Activity log
  • Created suggestion 12 hours ago
Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map pointer hijack

An arbitrary address write vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC (Scalable Video Coding) layer ID control function allows an attacker to inject an arbitrary pointer into the cyclic refresh map field via crafted image pixel values. The encoder then writes approximately 1,200 bytes at the attacker-controlled address. This is fully deterministic and does not require a separate information leak. An attacker who can supply frames to a network-facing libaom encoder with SVC enabled could exploit this for denial of service or potential code execution.

Affected products

aom
firefox
thunderbird

Matching in nixpkgs

pkgs.mfaomp

Multiple Files At Once Media Player

pkgs.faust2firefox

The faust2firefox script, part of faust functional programming language for realtime audio signal processing

pkgs.firefox_decrypt

Tool to extract passwords from profiles of Mozilla Firefox and derivates

pkgs.thunderbird-cli

Low-level CLI to manage Mozilla Thunderbird email from the shell

pkgs.thunderbird-mcp

MCP server for Thunderbird - enables AI assistants to access email, contacts, and calendars

pkgs.firefox-sync-client

Commandline-utility to list/view/edit/delete entries in a firefox-sync account

pkgs.thunderbird-cli-bridge

HTTP/WebSocket bridge daemon between thunderbird-cli (or any HTTP client) and the Thunderbird-cli WebExtension. Stateless proxy, localhost-only.

pkgs.gnomeExtensions.firefox-profiles

Easily launch Firefox with your favorite profile right from the indicator menu!

  • nixos-unstable 7
    • nixpkgs-unstable 7
    • nixos-unstable-small 7
  • nixos-26.05 7
    • nixos-26.05-small 7
    • nixpkgs-26.05-darwin 7

pkgs.gnomeExtensions.firefox-pip-always-on-top

Automatically sets Picture-in-Picture windows to always be on top and visible on all workspaces

  • nixos-unstable 4
    • nixpkgs-unstable 4
    • nixos-unstable-small 4
  • nixos-26.05 4
    • nixos-26.05-small 4
    • nixpkgs-26.05-darwin 4

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