CVE-2026-16354CWE-200information-disclosure

CVE-2026-16354

High · published July 21, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
26.4
In the wild
Unconfirmed
What it is

Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00341 · 26.4th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-07-21T17:17Z
Affected products (5)
ProductVersionsFixed in
mozilla/firefox< 115.38.0115.38.0
mozilla/firefox< 153.0.0153.0.0
mozilla/firefox≥ 128.1.0, < 140.13.0140.13.0
mozilla/thunderbird< 140.13.0140.13.0
mozilla/thunderbird≥ 141.0, < 153.0153.0
References (6)
https://www.mozilla.org/security/advisories/mfsa2026-72/ · [email protected]https://bugzilla.mozilla.org/show_bug.cgi?id=2050626 · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-68/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-69/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-70/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2026-71/ · [email protected]
EPSS history
Timeline
  • 21 JUL 12:37Z
    Information disclosure in the Graphics: ImageLib component
    cvelistv5