{"id":"CVE-2023-29542","state":"PUBLISHED","title":"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 l","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.\n\n*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.\n\n","publishedAt":"2023-06-19T10:03:32.039Z","updatedAt":"2024-12-11T15:47:00.715Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Firefox ESR","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","defaultStatus":"unaffected","versions":[{"version":"unspecified","status":"affected","lessThan":"112","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox ESR","defaultStatus":"unaffected","versions":[{"version":"unspecified","status":"affected","lessThan":"102.10","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","defaultStatus":"unaffected","versions":[{"version":"unspecified","status":"affected","lessThan":"102.10","versionType":"custom"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1810793","https://bugzilla.mozilla.org/show_bug.cgi?id=1815062","https://www.mozilla.org/security/advisories/mfsa2023-13/","https://www.mozilla.org/security/advisories/mfsa2023-14/","https://www.mozilla.org/security/advisories/mfsa2023-15/"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:52.290Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/29xxx/CVE-2023-29542.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-29542","state":"PUBLISHED","datePublished":"2023-06-19T10:03:32.039Z","dateUpdated":"2024-12-11T15:47:00.715Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2023-04-07T19:49:37.877Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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. 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