Vulnerability · NVD

CVE-2025-4919

CVE-2025-4919, high severity (CVSS 8.8): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.8
Exploitation: 8.6 %
Tracked apps: 2
Still exposed: 0

Published on 2025-05-17

An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.

Attack vector : Network No privileges required

Show raw CVSS vector

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

EPSS 8.63% above median percentile 94.9%

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 <115.23.1 Fixed in 115.23.1 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 <128.10.2 Fixed in 128.10.2 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)	<115.23.1	cpe:2.3:a:mozilla:firefox:::::esr:::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	<138.0.4	cpe:2.3:a:mozilla:firefox:::::-:::*
mozilla	firefox All platforms (wildcard)	All platforms (wildcard)	≥116.0 <128.10.1	cpe:2.3:a:mozilla:firefox:::::esr:::*
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	<128.10.2	cpe:2.3:a:mozilla:thunderbird::::::::
mozilla	thunderbird All platforms (wildcard)	All platforms (wildcard)	≥138.0 <138.0.2	cpe:2.3:a:mozilla:thunderbird:::::-:::*

View on NVD ↗ Advisory · www.mozilla.org

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