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CVE-2026-55945Moderate

Microsoft Edge (Chromium-based) Information Disclosure Vulnerability

MSRC advisory NVD CVE.org

Assessment

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.

Severity
Moderate
CVSS base score
4.2CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C
Impact
Information Disclosure
EPSS, next 30 days
0.2%Higher than 7.3% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Not assessed
Publicly disclosed
No
Customer action
Required: apply the update
Component
Microsoft Edge (Chromium-based)
Weakness
CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Issued by
Microsoft
Published
3 Jul 2026 · July 2026
Last revised
3 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
  • Microsoft Edge (Chromium-based)
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