CVE-2026-20929
CVSS v3
7.5
HIGH
EPSS Score
2.9 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
Technical details
- Published
- 2026-01-13
- Last Modified
- 2026-01-16
Frequently asked questions
What is CVE-2026-20929?
Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.
Is CVE-2026-20929 actively exploited?
Active exploitation of CVE-2026-20929 has not been confirmed. Its EPSS score was 2.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-20929?
CVE-2026-20929 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2026-20929 affecting your environment?
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