CVE-2015-7200: The CryptoKey interface implementation in Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 lack...

Security readout for executives and security teams

This is a 2015 Firefox Web Crypto issue involving CryptoKey status checks. The public summary says attackers could cause an unspecified impact through cryptographic key handling. Business urgency depends on whether any legacy Firefox or vendor-packaged browser builds remain in use. Exposure is likely limited to obsolete Firefox builds, Firefox ESR 38.x before 38.4, and Linux distribution packages that shipped those versions. Modern supported browsers should not be assumed affected from this bundle alone. Treat this as a legacy exposure check, not an emergency, unless old Firefox builds remain in regulated, kiosk, VDI, or embedded environments. The lack of impact detail and no KEV signal reduce confidence in urgency. Mitigation focus: Upgrade Firefox to 42.0 or later where applicable.; Upgrade Firefox ESR to 38.4 or later where applicable.; Apply relevant Debian, Ubuntu, Red Hat, SUSE, or Gentoo security updates..

Prepared

Jun 13, 2026, 21:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.