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

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.

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

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