Quick answers
- Is CVE-2026-58691 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-58691 being exploited in the wild.
- How severe is CVE-2026-58691?
- High severity, with a CVSS score of 8.4, published 15 September 2026.
- Which products and versions are affected?
- Google Pixel Firmware Prior to 2026-09-05 patch level.
- Is there a fix for CVE-2026-58691?
- A patch was published on 2026-09-05. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-58691 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-58691?
- Check whether you run Google Android or Google Pixel Firmware 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 exists in the FsmReleaseKey function of fsm.c in the GPCA (Google Pixel Component A) subsystem, where improper input validation fails to correctly enforce permission checks. This permits local privilege escalation (EoP) via a permission bypass mechanism. No additional execution privileges are required, and exploitation requires only local access to the device—no user interaction is necessary. The vulnerability was patched in the Pixel security update with patch level 2026-09-05 or later.
Affected products
- Google Pixel Firmware Prior to 2026-09-05 patch level
Timeline
- 2026-09-15: disclosed
- 2026-09-05: patched