CVE-2025-7026HIGH 8.2EPSS p9.8%

CVE-2025-7026CVE-2025-7026

Description

A vulnerability in the Software SMI handler (SwSmiInputValue 0xB2) allows a local attacker to control the RBX register, which is used as an unchecked pointer in the CommandRcx0 function. If the contents at RBX match certain expected values (e.g., '$DB$' or '2DB$'), the function performs arbitrary writes to System Management RAM (SMRAM), leading to potential privilege escalation to System Management Mode (SMM) and persistent firmware compromise.

Scoring

CVSS 3.18.2 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS0.20% probability of exploitation · percentile 9.8% · 2026-06-19T12:03:05Z
Published2025-07-11
Last modified2026-04-15

References

  1. https://kb.cert.org/vuls/id/746790
  2. https://www.binarly.io/advisories/brly-dva-2025-008
  3. https://www.gigabyte.com/Support/Security
  4. https://www.kb.cert.org/vuls/id/746790

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.