CVE-2026-97631
EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer…
- Risk score
- 69/100
- CVSS
- 9.5 v4.0
- Exploit chance (30 days)
- 0.4%
- Published
- 22 Oct 2026
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What to know
- What it is
- EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access, leading to arbitrary code execution.
- Affected
- {'product': 'EDK2', 'description': 'BIOS'}
- Fix
- Check the linked advisory for details on the fix.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.5 critical
- Remotely exploitable without logging in
References
Original description
EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access. Successful exploitation of this vulnerability can lead to arbitrary code execution. It could also impact Confidentiality, Integrity, and Availability.
Last activity 22 Oct 2026. Patch Forecast updates every hour.