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Permalink CVE-2026-56211
7.1 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): Low (L)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
created 3 months ago Activity log
  • Created suggestion 3 months ago
Libaom: libaom: remote code execution via svc layer context handling with attacker-controlled frames

A remote code execution vulnerability was found in libaom, the reference AV1 codec implementation. Insufficient bounds validation in the AV1 encoder's SVC (Scalable Video Coding) layer ID control allows an attacker to supply crafted video frame pixels that overlap with internal encoder layer context structures. In fork-based video processing services, an attacker can use this to hijack the cyclic refresh map pointer, brute-force the process base address via a crash oracle, and redirect control flow to achieve arbitrary command execution. Exploitation requires the target service to use libaom with SVC encoding enabled and accept attacker-supplied video frames.

Affected products

aom
firefox
thunderbird

Matching in nixpkgs

pkgs.libaom

Alliance for Open Media AV1 codec library

  • nixos-unstable -
  • nixos-26.05 -

pkgs.mfaomp

Multiple Files At Once Media Player

  • nixos-unstable -
    • nixos-unstable-small 0.4.3
  • nixos-26.05 -
    • nixos-26.05-small 0.4.3

pkgs.faust2firefox

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

  • nixos-unstable -
  • nixos-26.05 -

pkgs.firefox_decrypt

Tool to extract passwords from profiles of Mozilla Firefox and derivatives

  • nixos-unstable -
    • nixos-unstable-small 1.1.3
  • nixos-26.05 -
    • nixos-26.05-small 1.1.3

pkgs.thunderbird-cli

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

  • nixos-unstable -
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2

pkgs.thunderbird-mcp

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

  • nixos-unstable -
    • nixos-unstable-small 0.7.4
  • nixos-26.05 -
    • nixos-26.05-small 0.5.0

pkgs.pkgsRocm.firefox

Web browser built from Firefox source tree

  • nixos-unstable -
    • nixos-unstable-small 156.0
  • nixos-26.05 -
    • nixos-26.05-small 156.0

pkgs.firefox-unwrapped

Web browser built from Firefox source tree

  • nixos-unstable -
    • nixos-unstable-small 156.0
  • nixos-26.05 -
    • nixos-26.05-small 156.0

pkgs.firefox-gnome-theme

GNOME theme for Firefox

  • nixos-unstable -
    • nixos-unstable-small 150
  • nixos-26.05 -
    • nixos-26.05-small 150

pkgs.firefox-sync-client

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

  • nixos-unstable -
  • nixos-26.05 -
    • nixos-26.05-small 1.9.0

pkgs.pkgsRocm.firefoxpwa

Tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox (native component)

  • nixos-unstable -
  • nixos-26.05 -

pkgs.thunderbird-cli-mcp

MCP server that gives full access to your email through Mozilla Thunderbird

  • nixos-unstable -
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2

pkgs.firefox-devtools-mcp

Model Context Protocol server for Firefox DevTools automation

  • nixos-unstable -
    • nixos-unstable-small 0.9.9

pkgs.firefoxpwa-unwrapped

Tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox (native component)

  • nixos-unstable -
  • nixos-26.05 -

pkgs.thunderbird-cli-bridge

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

  • nixos-unstable -
    • nixos-unstable-small 1.0.2
  • nixos-26.05 -
    • nixos-26.05-small 1.0.2

pkgs.pkgsRocm.firefoxpwa-unwrapped

Tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox (native component)

  • nixos-unstable -

pkgs.gnomeExtensions.firefox-profiles

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

  • nixos-unstable -
    • nixos-unstable-small 7
  • nixos-26.05 -
    • nixos-26.05-small 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 -
    • nixos-unstable-small 4
  • nixos-26.05 -
    • nixos-26.05-small 4

pkgs.home-assistant-custom-components.xiaomi_gateway3

Home Assistant custom component for control Xiaomi Multimode Gateway (aka Gateway 3), Xiaomi Multimode Gateway 2, Aqara Hub E1 on default firmwares over LAN

  • nixos-unstable -
    • nixos-unstable-small 4.2.4
  • nixos-26.05 -
    • nixos-26.05-small 4.1.4

Package maintainers