# CVE-2026-59580: ARM Trusted Firmware Secure world register state leak in Trusty context switch

Source: https://junglewise.ai/threats/cve-2026-59580-in-trusty-context-switch-of-services-spd-trusty-trusty-c-there-is  
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-2026-59580 · Severity: info · Published 2026-11-10

ARM Trusted Firmware's Trusty secure execution environment handles sensitive cryptographic operations and authentication on mobile devices. A logic error in the context switching code can leak Secure world processor register contents to the Normal world, allowing a local attacker with execution privileges to read sensitive security data and compromise device security.

Vendors: [Arm](https://junglewise.ai/threats/vendors/arm).

## Quick answers

**Is CVE-2026-59580 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-59580 being exploited in the wild.

**How severe is CVE-2026-59580?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** Arm Trusted Firmware unspecified.

**Is there a fix for CVE-2026-59580?** 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-2026-59580 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-59580?** Check whether you run Arm Trusted 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

A logic error in trusty_context_switch of services/spd/trusty/trusty.c allows Secure world register state to be leaked to the Normal world due to improper state handling during context transitions. This is a local information disclosure vulnerability requiring execution privileges; the advisory notes user interaction is needed for exploitation. The vulnerability affects the ARM Trusted Firmware's Trusty TZ kernel component in Pixel devices.

## Affected products

- ARM Trusted Firmware unspecified

## 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

- [Arm Trusted Firmware Out-of-Bounds Write Vulnerability](https://junglewise.ai/threats/cve-2021-27562-arm-trusted-firmware-out-of-bounds-write-vulnerability)