Vulnerability · NVD

CVE-2025-2817

CVE-2025-2817, high severity (CVSS 8.8): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.8
Exploitation: 0.7 %
Tracked apps: 2
Still exposed: 0

Published on 2025-04-29

Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.

Attack vector : Network No user interaction

Show raw CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS 0.66% exploit very unlikely percentile 49.4%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Mozilla Firefox Windows winget:Mozilla.Firefox

Affected <115.23.0 Fixed in 115.23.0 Latest tracked 157.0 patched

Observed affected builds (57)

115.0.3 115.0.2 115.0.1 115.0 114.0.2 114.0.1 113.0.2 113.0.1 113.0 112.0.2 112.0.1 112.0 111.0.1 111.0 110.0.1 110.0 109.0.1 109.0 108.0.2 108.0.1 108.0 107.0.1 107.0 106.0.5 106.0.4 106.0.3 106.0.2 106.0.1 106.0 105.0.3 +27 · see history
Mozilla Thunderbird Windows winget:Mozilla.Thunderbird

Affected <128.10.0 Fixed in 128.10.0 Latest tracked 157.0 patched

Observed affected builds (87)

115.14.0 115.13.0 115.12.2 115.12.1 115.11.1 115.11.0 115.10.2 115.10.1 115.10.0 115.9.0 115.8.1 115.8.0 115.7.0 115.6.1 115.6.0 115.5.2 115.5.1 115.4.2 115.4.1 115.3.3 115.3.2 115.3.1 115.3.0 115.2.3 115.2.2 115.0 102.15.0 102.14.0 102.13.0 102.12.0 +57 · see history

Vulnerable CPE configurations (5)

Vendor	Product	Platform	Versions	CPE 2.3 URI
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<115.23.0	cpe:2.3:a:mozilla:firefox:::::esr:::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<138.0	cpe:2.3:a:mozilla:firefox:::::-:::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	≥116.0 <128.10.0	cpe:2.3:a:mozilla:firefox:::::esr:::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<128.10.0	cpe:2.3:a:mozilla:thunderbird::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	≥129.0 <138.0	cpe:2.3:a:mozilla:thunderbird::::::::

View on NVD ↗ Advisory · www.mozilla.org

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