Vulnerability · Published May 12, 2026 · Assigned by microsoft
CVE-2026-42838Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Medium 5.4
In plain English
A medium-severity injection in Microsoft Edge (Chromium-based) from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.2%top 84.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Edge (Chromium-based) | 1.0.0.0 – before 148.0.3967.55 |
Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
References
- Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability vendor-advisory, patch