CVE-2026-55945
CVE-2026-55945 is a medium-severity vulnerability in Microsoft Edge Chromium with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.
Key facts
- Severity: Medium (CVSS 3.x base score 4.2)
- EPSS exploit prediction: 0% (4th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-362
- Affected product: Microsoft Edge Chromium
- Published:
- Last modified:
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
Frequently asked questions
- What is CVE-2026-55945?
- Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
- How severe is CVE-2026-55945?
- CVE-2026-55945 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-55945 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-55945?
- CVE-2026-55945 affects Microsoft Edge Chromium. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-55945?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-55945 published?
- CVE-2026-55945 was published on 2026-07-03 and last updated on 2026-07-07.
References
Affected products (1)
- cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
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