Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
EDK2's new 9.5 lets an attacker corrupt firmware during PXE boot, before Secure Boot measures anything. The fix merged into master a week ago; no stable tag has it. No exploitation reported. https://severitydaily.com/edk2-cve-2026-97631-9-5-pxe-icmp-pre-boot-rce-merged-october-15-no-stable-tag-not-patched-currently/