CVE-2025-4085

Public on 2025-04-29

Modified on 2025-05-01

Description

An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability affects Firefox < 138 and Thunderbird < 138.

Severity

Important

See what this means

CVSS v3 Base Score

8.8

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 2 - Firefox Extra	firefox	Not Affected
Amazon Linux 2023	firefox	Not Affected
Amazon Linux 2 - Core	thunderbird	Not Affected

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	CVSSv3	7.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2025-4085 Mitre: CVE-2025-4085