CVE-2025-20109

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-08-12 · updated 2026-06-17
Weakness: CWE-653

Description

Improper Isolation or Compartmentalization in the stream cache mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via local access.

Affected products

Intel(R) Processors: See references

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.html
https://lists.debian.org/debian-lts-announce/2025/10/msg00027.html

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