CVE-2026-97631Critical· 9.5▾ MidnightEDK2 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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 52.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 24.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
9.5 → 8.8
critical → high
Last analysed / modified upstream
0.4% → 0.5%
8.8 → 9.5
high → critical
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.
NetworkPkg <= edk2-stable202608Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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