CVE-2026-74950

HighCVSS 8.8

Published: 18/08/2026(UTC)Updated: 21/08/2026(UTC)Translated: 19/08/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

13th percentile - higher than 13% of all known CVEs

Summary

Privilege escalation in the Downloads API component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Risk Assessment

An attacker may exploit the vulnerability to escalate privileges, potentially allowing manipulation of downloaded files or access to user data.

Recommendation

Update Firefox or Thunderbird to a patched version.

Original NVD description (English source)

Privilege escalation in the Downloads API component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.