# CVE-2026-58722: Android AOC CHRE heap buffer overflow in discovery handler

Source: https://junglewise.ai/threats/cve-2026-58722-in-chppprocessdiscoverallresponse-of-system-chre-chpp-clients  
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-2026-58722 · Severity: info · Published 2026-11-10

A heap buffer overflow vulnerability exists in the Context Hub Runtime Environment (CHRE) component of Google Pixel devices' Always-On Coprocessor (AOC). An attacker can exploit this through a specially crafted message to achieve privilege escalation on the coprocessor without requiring user interaction.

Technologies: [Google Pixel Devices](https://junglewise.ai/threats/technologies/pixel-devices). Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2026-58722 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-58722 being exploited in the wild.

**How severe is CVE-2026-58722?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** Google Pixel Devices Devices with security patch level prior to 2026-11-05.

**Is there a fix for CVE-2026-58722?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-58722 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-58722?** Check whether you run Google Pixel Devices at an affected version. 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.

## Technical details

The vulnerability is a heap buffer overflow due to a logic error in the chppProcessDiscoverAllResponse function located in system/chre/chpp/clients/discovery.c. The flaw allows an attacker with network access to send a malicious discovery response message that triggers out-of-bounds heap memory write, leading to privilege escalation on the AOC (Always-On Coprocessor) with no additional execution privileges required.

## Affected products

- Google Pixel devices Devices with security patch level prior to 2026-11-05

## 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)

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