CVE-2025-26403
EPSS 0.03%
Description
Out-of-bounds write in the memory subsystem for some Intel(R) Xeon(R) 6 processors when using Intel(R) SGX or Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via local access.
How to fix CVE-2025-26403
To remediate CVE-2025-26403, upgrade the affected package to a fixed version below.
- Alpine/intel-ucode—upgrade to 20250812-r0 or later
- Debian/intel-microcode—upgrade to 3.20250812.1~deb11u1 or later
Is CVE-2025-26403 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 20250812-r0
- from 0, < 3.20250812.1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |