What’s Vulnerable › Vulnerabilities
CVE-2026-42838: Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-12 · updated 2026-10-26
- Weakness: CWE-74
Description
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.
Affected products
- Microsoft Edge (Chromium): before 148.0.3967.55 — fixed in 148.0.3967.55
- Microsoft Edge (Chromium): from 1.0.0.0 before 148.0.3967.55 — fixed in 148.0.3967.55
How to fix
Upgrade to a fixed version: Microsoft Edge (Chromium) 148.0.3967.55; Microsoft Edge (Chromium) 148.0.3967.55. Check the vendor advisory for mitigations.
References
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