access.redhat.comvdb entry
https://access.redhat.com/security/cve/CVE-2026-72694 CVE-2026-72694
HIGH
Mrtg: mrtg daemon symlink-following chown allows local privilege escalation via pid file path manipulation
Record summary
CVE-2026-72694 has a selected CVSS score of 7.1 (high).
Description
A flaw was found in MRTG. When the MRTG daemon is started as a root user and subsequently drops privileges, a local, low-privileged attacker can exploit a symbolic link (symlink) following vulnerability. By influencing or pre-placing a symlink in the process ID (PID) file path, the attacker can trick the root process into changing the ownership of an arbitrary existing file to the daemon user. This can lead to local privilege escalation, allowing unauthorized access to or modification of sensitive files.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationNone
AutomatableNo
Technical impactTotal
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 12, 2026 · Source: CVE List
Affected products and versions
5| Product | Source | Version range | Status |
|---|---|---|---|
Default status: affected | CVE List | Version data not supplied | |
Default status: unknown | CVE List | Version data not supplied | |
Default status: affected | CVE List | Version data not supplied | |
Default status: affected | CVE List | Version data not supplied | |
Default status: affected | CVE List | Version data not supplied | |
References
3RHBZ#2460973issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2460973 nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-72694