🛡️ CVE-2026-55945 — edge-chromium

🟡 CVSS 4.2 — Medium ✅ No Known Exploit CWE-362 NVD
4.2
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2026-55945 is classified as CWE-362: Race Condition. Concurrent operations share state without proper synchronisation, so timing decides whether the result is correct.

Affected software

CVE-2026-55945 is recorded against 1 package.

  • edge-chromium (fixed in 150.0.4078.48)

Timeline and source

Published on 3 July 2026 and last revised on 7 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity MEDIUM
CVSS Score 4.2
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
CWE CWE-362
Public Exploit ✅ No
Source NVD
Published 2026-07-03
Updated 2026-08-11
Modified 2026-07-07
Fix URL N/A

Affected Packages

Software From version Fixed in
edge-chromium — 150.0.4078.48

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