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CVE-2026-54120Critical

Microsoft Surface Remote Code Execution Vulnerability

MSRC advisory NVD CVE.org

Assessment

Improper input validation in Microsoft Surface allows an authorized attacker to execute code over a network.

Severity
Critical
CVSS base score
9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact
Remote Code Execution
EPSS, next 30 days
1.0%Higher than 59.9% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Not assessed
Publicly disclosed
No
Customer action
Not required (service-side fix)
Component
Microsoft Surface
Weakness
CWE-20: Improper Input Validation
Issued by
Microsoft
Published
23 Jul 2026 · July 2026
Last revised
23 Jul 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Browser
1 affected product
  • Surface Management Services
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