# CVE-2026-59631: Google Pixel HWCodec Firmware non-heap buffer overflow in HEVC decoder

Source: https://junglewise.ai/threats/cve-2026-59631-in-s-inter-rps-pred-of-hevc-decoder-there-is-a-possible-non-heap  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-59631 · Severity: info · Published 2026-11-10

Google Pixel devices contain a hardware video codec (HWCodec) firmware that decodes H.265/HEVC video streams. A buffer overflow vulnerability in the HEVC decoder could allow a local attacker with access to the device to execute arbitrary code with elevated privileges, potentially compromising device security and user data.

Technologies: [Google Pixel HWCodec Firmware](https://junglewise.ai/threats/technologies/pixel-hwcodec-firmware). Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2026-59631 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-59631 being exploited in the wild.

**How severe is CVE-2026-59631?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** Google Pixel HWCodec Firmware.

**Is there a fix for CVE-2026-59631?** 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-2026-59631 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-59631?** 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 exists in the s_inter_rps_pred function of the HEVC decoder in Google Pixel HWCodec Firmware. The vulnerability requires local access and user interaction (e.g., processing a malicious video file) to trigger. Successful exploitation grants privilege escalation to the HWCodec firmware execution context.

## Affected products

- Google Pixel HWCodec Firmware

## Timeline

- 2026-11-10: disclosed

## References

- [https://source.android.com/docs/security/bulletin/pixel/2026/2026-11-01](https://source.android.com/docs/security/bulletin/pixel/2026/2026-11-01)

## Related threats

- [Google HWCodec Firmware logic error in userdata_report](https://junglewise.ai/threats/cve-2026-59637-in-userdata-report-of-hwcodec-firmware-there-is-a-possible-logic)
- [Google Pixel HWCodec Firmware buffer overflow in AVC decoder](https://junglewise.ai/threats/cve-2026-59612-in-buffering-period-of-avc-decoder-there-is-a-possible-non-heap)
- [Google Pixel HWCodec Firmware buffer overflow in HEVC decoder](https://junglewise.ai/threats/cve-2026-59608-in-tone-mapping-info-of-hevc-decoder-there-is-a-possible-non-heap)
- [Google Pixel HWCodec Firmware heap buffer overflow in AV1 decoder](https://junglewise.ai/threats/cve-2026-59593-in-tile-info-of-av1-decoder-there-is-a-possible-heap-buffer)
- [Google Pixel HWCodec firmware buffer overflow in avc_decoder](https://junglewise.ai/threats/cve-2026-59573-in-max-num-ref-frames-of-avc-decoder-there-is-a-possible-non-heap)