6.5mediumMedium
CVE-2026-74948
Mozilla Firefox
Information disclosure in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, someone has to be persuaded to take an action first.
Scoring
- CVSS
- 6.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N- Weakness
- CWE-200
- Assigned by
- security@mozilla.org
Dates
- Published
- 2026-08-18
- Last modified
- 2026-08-24
- Sources
- NVD
Affected products
- Mozilla Firefox- 115.39.0, 116.0 - 140.14.0, 141.0 - 153.1.0
- Mozilla Thunderbird- 140.14.0, 141.0 - 153.1.0
As listed in the NVD configuration data. Not a statement about your estate.
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2060106
- https://www.mozilla.org/security/advisories/mfsa2026-74/
- https://www.mozilla.org/security/advisories/mfsa2026-75/
- https://www.mozilla.org/security/advisories/mfsa2026-76/
- https://www.mozilla.org/security/advisories/mfsa2026-77/
- https://www.mozilla.org/security/advisories/mfsa2026-78/
- https://www.mozilla.org/security/advisories/mfsa2026-79/
- https://www.mozilla.org/security/advisories/mfsa2026-80/