CVE-2025-20613 Weak cryptography in Intel(R) TDX
An authenticated local attacker can exploit a predictable PRNG seed in Intel TDX firmware to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-20613?
CVE-2025-20613 is a low-severity vulnerability in Intel(R) TDX, published on 12 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Predictable Seed in Pseudo-Random Number Generator (PRNG) in the firmware for some Intel(R) TDX may allow an authenticated user to potentially enable information disclosure via local access.
Weakness: CWE-337
Which versions are affected by CVE-2025-20613?
How do I fix CVE-2025-20613?
No fix has been published for CVE-2025-20613 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-20613 being exploited?
There is no known exploitation of CVE-2025-20613 in the wild and no public exploit code.
Sources
Also known as GHSA-q472-frv7-c8cq.