CVE-2026-59573: Google Pixel HWCodec firmware buffer overflow in avc_decoder

CVE-2026-59573 · Severity: info · Published 2026-11-10

A buffer overflow vulnerability exists in the AVC video decoder component of Google Pixel hardware codec firmware, which handles video playback on Pixel devices. An attacker with local access and user interaction could exploit this to escalate privileges and execute arbitrary code on the device.

Technologies: Google Pixel HWCodec Firmware. Vendors: Google.

Quick answers

Is CVE-2026-59573 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-59573 being exploited in the wild.
How severe is CVE-2026-59573?
Informational severity, published 10 November 2026.
Which products and versions are affected?
Google Pixel HWCodec Firmware.
Is there a fix for CVE-2026-59573?
Yes: fixed in Pixel security patch level 2026-11-05 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-59573 attacked?
It is attacked with local access, in device firmware.
Am I affected by CVE-2026-59573?
Check whether you run Google Pixel HWCodec Firmware. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Pixel security patch level 2026-11-05 or later

Technical details

A non-heap buffer overflow in the max_num_ref_frames function of the avc_decoder component allows local privilege escalation with execution privileges required. The vulnerability requires user interaction for exploitation and affects the hardware codec firmware on Pixel devices.

Affected products

  • Google Pixel HWCodec Firmware

Timeline

  • 2026-11-10: disclosed
  • 2026-11-10: advisory

References

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