CVE-2025-14329 — Improper Privilege Management in Mozilla Firefox

12 documents9 sources
Severity
8.8HIGHNVD
EPSS
0.1%
top 77.54%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Mozilla ThunderbirdMozilla Firefox
Timeline
PublishedDec 9
Latest updateFeb 2

Description

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages3 packages

▶NVDmozilla/firefox< 140.6.0+1
▶NVDmozilla/thunderbird< 140.6.0+1
▶Debianmozilla/thunderbird< 1:140.6.0esr-1~deb11u1+3

🔴Vulnerability Details

3
CVEList
Privilege escalation in the Netmonitor component↗2025-12-09
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OSV
CVE-2025-14329: Privilege escalation in the Netmonitor component↗2025-12-09
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GHSA
GHSA-vxvx-cxrx-x52j: Privilege escalation in the Netmonitor component↗2025-12-09
▶

📋Vendor Advisories

7
Ubuntu
Thunderbird vulnerabilities↗2026-02-02
▶
Red Hat
firefox: thunderbird: Privilege escalation in the Netmonitor component↗2025-12-09
▶
Debian
CVE-2025-14329: firefox - Privilege escalation in the Netmonitor component. This vulnerability affects Fir...↗2025
▶
Mozilla
Mozilla Foundation Security Advisory 2025-92: CVE-2025-14329↗
▶
Mozilla
Mozilla Foundation Security Advisory 2025-94: CVE-2025-14329↗
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🕵️Threat Intelligence

1
Wiz
CVE-2025-14329 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2025-14329 — Improper Privilege Management | cvebase