CVE-2023-29542

Mozilla Firefox

CRITICAL 9.8

At a glance

Source: NVD
EPSS: EPSS 0.94 % · percentile 61 (2026-10-28)
State: PUBLISHED
Published: 2023-06-19 10:03 UTC
Updated: 2024-12-11 15:47 UTC
Assigner: mozilla
NVD status: Modified

Description

A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

ENISA EUVD · EUVD-2023-33084
GCVE · GCVE-0-2023-29542

CERT-FR advisories

CERTFR-2023-AVI-0303 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* < 112.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* < 102.10
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* < 102.10

Affected products

Product	Versions
Mozilla · Firefox	affected unspecified < 112
Mozilla · Firefox ESR	affected unspecified < 102.10
Mozilla · Thunderbird	affected unspecified < 102.10

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD