{"cve":"CVE-2023-6865","nvd":{"published":"2023-12-19T14:15:07.777","modified":"2026-06-17T06:51:34.463","status":"Modified","description":"`EncryptingOutputStream` was susceptible to exposing uninitialized data.  This issue could only be abused in order to write data to a local disk which may have implications for private browsing mode. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121.","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:N/A:N","score":6.5},"cwes":[],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=1864123","https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html","https://security.gentoo.org/glsa/202401-10","https://www.debian.org/security/2023/dsa-5581","https://www.mozilla.org/security/advisories/mfsa2023-54/"],"products":["debian:debian_linux","mozilla:firefox","mozilla:firefox_esr"],"source":"nvd","synced_at":"2026-10-19T21:42:34.585441961+00:00"},"epss":{"cve":"CVE-2023-6865","score":0.00888,"percentile":0.5933,"date":"2026-10-31"},"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."]}