CVE-2020-15397: HylaFAX+ through 7.0.2 and HylaFAX Enterprise have scripts that execute binaries from directories writable...

Security readout for executives and security teams

HylaFAX systems may let a low-privileged service user influence which program gets run by maintenance scripts. If an affected script is called by root, that weakness can turn limited local access into root-level code execution. This is mainly urgent for systems that still run HylaFAX+ through 7.0.2 or HylaFAX Enterprise. Exposure is most likely on Unix/Linux servers running HylaFAX+ through 7.0.2, HylaFAX Enterprise, or distribution packages covered by Gentoo, Fedora, and openSUSE advisories. Internet exposure is not the key condition; local account or service-user write access is. Treat as a high-priority local privilege escalation on fax infrastructure. Prioritize servers where HylaFAX runs with privileged maintenance tasks, shared Unix access, legacy service accounts, or weak change control. Mitigation focus: Apply fixed HylaFAX or distribution packages from vendor advisories.; Upgrade HylaFAX+ beyond affected 7.0.2 builds where vendor packages support it.; Disable or remove HylaFAX services where no business need remains..

Prepared

Jun 5, 2026, 14:11 UTC (UTC+00:00)

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