CVE-2026-55945 json
Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
published 2026-07-03 4 mo ago modified 2026-11-01 7 d ago also EUVD-2026-41645
- cvss
- 4.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
Patch / fix
- Microsoft Microsoft Edge (Chromium-based) 150.0.4078.48
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- Microsoft Microsoft Edge (Chromium-based)
Classification
- Weakness
-
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-55945
vendor-advisory, patch
Sources
- CVE List CVE-2026-55945
- NVD CVE-2026-55945
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