CVE-2023-29542
CRITICALFirefox < 112 & Thunderbird < 102.10 - Info Disclosure
Title source: llmDescription
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 (5)
Core 5
Core References
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1810793
Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1815062
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-13/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-14/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-15/
Scores
CVSS v3
9.8
EPSS
0.0013
EPSS Percentile
32.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
Status
published
Products (3)
mozilla/firefox
< 112.0
mozilla/firefox_esr
< 102.10
mozilla/thunderbird
< 102.10
Published
Jun 19, 2023
Tracked Since
Feb 18, 2026