CVE-2026-16397 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	6.5 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 6.96%

Affected Products (NVD)

Vendor	Product	Version
mozilla	firefox	𝑥 < 153.0.0

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

firefox

sid	154.0.1-1 fixed

Ubuntu Releases

Ubuntu Product

Codename

firefox

jammy	not-affected
noble	not-affected
resolute	not-affected

thunderbird

jammy	needed
noble	not-affected
resolute	not-affected

mozjs38

bionic	needs-triage
jammy	dne
noble	dne
resolute	dne

mozjs52

bionic	ignored
focal	ignored
jammy	dne
noble	dne
resolute	dne

mozjs68

focal	ignored
jammy	dne
noble	dne
resolute	dne

mozjs78

jammy	ignored
noble	dne
resolute	dne

mozjs91

jammy	ignored
noble	dne
resolute	dne

mozjs102

jammy	ignored
noble	ignored
resolute	dne

mozjs115

jammy	dne
noble	ignored
resolute	dne

Common Weakness Enumeration

CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with.

Vulnerability Media Exposure

[GERMAN] Mozilla Firefox und Thunderbird: Mehrere Schwachstellen
Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Thunderbird ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Berechtigungen zu erweitern, Sandbox-Escapes durchzuführen, Daten zu manipulieren, einen Denial-of-Service-Zustand auszulösen oder Speicherbeschädigungen zu verursachen.
Published: 2026-07-21T22:00:00+00:00

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2047608

https://www.mozilla.org/security/advisories/mfsa2026-68/