CVE-2026-45489
CVE-2026-45489 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-290.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (38th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-290
- Affected product: Microsoft Edge Chromium
- Published:
- Last modified:
Description
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Frequently asked questions
- What is CVE-2026-45489?
- Microsoft Edge (Chromium-based) Spoofing Vulnerability
- How severe is CVE-2026-45489?
- CVE-2026-45489 has a CVSS 3.x base score of 6.5, rated medium 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-2026-45489 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-45489?
- CVE-2026-45489 affects Microsoft Edge Chromium. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-45489?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-45489 published?
- CVE-2026-45489 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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