CVE-2026-42891
CVE-2026-42891 is a medium-severity vulnerability in Microsoft Edge Chromium with a CVSS 3.x base score of 6.5. 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-451.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (20th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-29715
- Weakness: CWE-451
- Affected product: Microsoft Edge Chromium
- Published:
- Last modified:
Description
User interface (ui) misrepresentation of critical information in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Frequently asked questions
- What is CVE-2026-42891?
- User interface (ui) misrepresentation of critical information in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
- How severe is CVE-2026-42891?
- CVE-2026-42891 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
- Is CVE-2026-42891 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-42891?
- CVE-2026-42891 affects Microsoft Edge Chromium. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-42891?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-42891 have an EU (EUVD) identifier?
- Yes. CVE-2026-42891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29715.
- When was CVE-2026-42891 published?
- CVE-2026-42891 was published on 2026-05-12 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:android:*:*
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