CVE-2025-20109
highpriority · track · 0EPSS 0.001 · 3 %ileDEEURUEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.4–7.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (150)
Products and version ranges known to be affected.
- Intel Prozessor 5th, 4th Gen Xeon Scalable Processorsall versionscert_bundDEcpe:/h:intel:intel_prozessor:5th_4th_gen_xeon_scalable_processors
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1785Intel Prozessoren: Mehrere SchwachstellenDeutsch2025-08-12csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Intel Prozessor ausnutzen, um seine Privilegien zu erhöhen, vertrauliche Informationen offenzulegen und einen Denial-of-Service-Zustand herbeizuführen.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.htmlcnnvd
- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.htmlenisa_euvd
- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.htmlnvd
- https://lists.debian.org/debian-lts-announce/2025/10/msg00027.htmlnvd
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