CVE-2025-4085
published 2025-04-29CVE-2025-4085: An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges…
PriorityP336high7.1CVSS 3.1
AVNACLPRLUINSUCHILAN
EPSS
0.27%
18.8th percentile
An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability was fixed in Firefox 138 and Thunderbird 138.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 138.0-1 (sid) | firefox 138.0-1 (sid) |
| mozilla | firefox | < 138.0 | 138.0 |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 138.0 | 138.0 |
| mozilla | thunderbird | >= 0 < 1:140.7.1+build1-0ubuntu0.22.04.1 | 1:140.7.1+build1-0ubuntu0.22.04.1 |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
osv7.1HIGH
vendor_debian7.1HIGH
vendor_redhat7.1HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2026-02-02
CVE-2025-8031 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
firefox: thunderbird: Potential information leakage and privilege escalation in UITour actor
vendor_redhat·2025-04-29·CVSS 7.1
CVE-2025-4085 [HIGH] CWE-200 firefox: thunderbird: Potential information leakage and privilege escalation in UITour actor
firefox: thunderbird: Potential information leakage and privilege escalation in UITour actor
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.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: firefox-flatpak-contain
Debian
CVE-2025-4085: firefox - An attacker with control over a content process could potentially leverage the p...
vendor_debian·2025·CVSS 7.1
CVE-2025-4085 [HIGH] CVE-2025-4085: firefox - An attacker with control over a content process could potentially leverage the p...
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.
Scope: local
sid: resolved (fixed in 138.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-31: CVE-2025-4085
vendor_mozilla·CVSS 7.1
CVE-2025-4085 [HIGH] Mozilla Foundation Security Advisory 2025-31: CVE-2025-4085
Mozilla Foundation Security Advisory 2025-31
CVE: CVE-2025-4085
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 138
Mozilla
Mozilla Foundation Security Advisory 2025-28: CVE-2025-4085
vendor_mozilla·CVSS 7.1
CVE-2025-4085 [HIGH] Mozilla Foundation Security Advisory 2025-28: CVE-2025-4085
Mozilla Foundation Security Advisory 2025-28
CVE: CVE-2025-4085
Product: Firefox
Impact: high
Fixed in: Firefox 138
GHSA
GHSA-8hvc-6h7p-6mcf: An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privi
ghsa_unreviewed·2025-04-29
CVE-2025-4085 [HIGH] CWE-269 GHSA-8hvc-6h7p-6mcf: An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privi
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.
OSV
CVE-2025-4085: An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privi
osv·2025-04-29·CVSS 7.1
CVE-2025-4085 [HIGH] CVE-2025-4085: An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privi
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-04-29
Published