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CVE-2025-20109

26
FAUCET Score

CVE-2025-20109 describes an Improper Isolation or Compartmentalization vulnerability within the stream cache mechanism of certain Intel Processors, potentially allowing an authenticated local user to escalate privileges. With a CVSS score of 7.8 (HIGH), this vulnerability requires local access and high attack complexity, but could lead to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
N/AIntel(R) Processors
See referencesCNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

7.3HIGH

CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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

Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
3.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 19th percentile among its peer group of 1,525 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gcppatch availablevia llm_extracted
View patch

Vendor Advisories (1)

gcpllm-gcp-7538b60b71961759HIGH

Intel Processor Stream Cache August 2025 Security Update

Aug 13, 2025

References

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