CVE-2025-5271 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.5 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
mozilla	CNA	---				---
CISA-ADP	ADP	6.5 MEDIUM	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 16%

Vendor	Product	Version
mozilla	firefox	𝑥 < 139.0

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

firefox

sid	145.0.1-1 fixed

Ubuntu Releases

Ubuntu Product

Codename

firefox

questing	not-affected
plucky	not-affected
oracular	not-affected
noble	not-affected
jammy	not-affected
focal	dne

thunderbird

questing	not-affected
plucky	not-affected
oracular	not-affected
noble	not-affected
jammy	not-affected
focal	dne

mozjs38

questing	dne
plucky	dne
oracular	dne
noble	dne
jammy	dne
focal	dne
bionic	needs-triage

mozjs52

questing	dne
plucky	dne
oracular	dne
noble	dne
jammy	dne
focal	ignored
bionic	ignored

mozjs68

questing	dne
plucky	dne
oracular	dne
noble	dne
jammy	dne
focal	ignored

mozjs78

questing	dne
plucky	dne
oracular	dne
noble	dne
jammy	ignored
focal	dne

mozjs91

questing	dne
plucky	dne
oracular	dne
noble	dne
jammy	ignored
focal	dne

mozjs102

questing	dne
plucky	dne
oracular	dne
noble	ignored
jammy	ignored
focal	dne

mozjs115

questing	dne
plucky	ignored
oracular	ignored
noble	ignored
jammy	dne
focal	dne

Common Weakness Enumeration

CWE-116 - Improper Encoding or Escaping of Output
The software prepares a structured message for communication with another component, but encoding or escaping of the data is either missing or done incorrectly. As a result, the intended structure of the message is not preserved.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1920348

https://www.mozilla.org/security/advisories/mfsa2025-42/

https://www.mozilla.org/security/advisories/mfsa2025-45/