{"cve":"CVE-2023-29539","nvd":{"published":"2023-06-02T17:15:12.607","modified":"2026-10-23T23:10:00.157","status":"Modified","description":"When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-476"],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1784348","https://www.mozilla.org/security/advisories/mfsa2023-13/","https://www.mozilla.org/security/advisories/mfsa2023-14/","https://www.mozilla.org/security/advisories/mfsa2023-15/","https://bugzilla.mozilla.org/show_bug.cgi?id=1784348"],"products":["mozilla:firefox","mozilla:firefox_esr","mozilla:firefox_mobile","mozilla:focus","mozilla:thunderbird"],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2023-29539","score":0.00737,"percentile":0.54196,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}