CVE-2026-57990
CVE-2026-57990 is a high-severity vulnerability in Microsoft Edge Chromium with a CVSS 3.x base score of 7.4. 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-552.
Key facts
- Severity: High (CVSS 3.x base score 7.4)
- EPSS exploit prediction: 1% (58th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-552
- Affected product: Microsoft Edge Chromium
- Published:
- Last modified:
Description
Files or directories accessible to external parties in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
Frequently asked questions
- What is CVE-2026-57990?
- Files or directories accessible to external parties in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
- How severe is CVE-2026-57990?
- CVE-2026-57990 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-57990 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-57990?
- CVE-2026-57990 affects Microsoft Edge Chromium. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-57990?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-57990 published?
- CVE-2026-57990 was published on 2026-07-26 and last updated on 2026-08-03.
References
Affected products (1)
- cpe:2.3:a:microsoft:edge_chromium:-:*:*:*:*:*:*:*
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