CVE-2026-58008 Unchecked HKDF key-size input in EL3 causes a stack buffer overflow
A stack buffer overflow in Altera Trusted Firmware allows attackers to execute arbitrary code or escalate privileges via unchecked HKDF key-size inputs.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-58008?
CVE-2026-58008 is a high-severity memory corruption vulnerability in Altera Trusted Firmware, published on 24 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Stack-based buffer overflow vulnerability in Altera Trusted Firmware on HPS allows Exploitation of Improperly Configured or Implemented Memory Protections.
This issue affects Trusted Firmware: through socfpga_v2.14.0.
Weakness: CWE-121
Which versions are affected by CVE-2026-58008?
How do I fix CVE-2026-58008?
No fix has been published for CVE-2026-58008 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-58008 being exploited?
There is no known exploitation of CVE-2026-58008 in the wild and no public exploit code.
Sources
Also known as GHSA-rp2j-q3xg-2qhf.