CVE catalog
CVE-2026-72694
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 vulnerabili
- Severity
- High · CVSS 7.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.13% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mrtg | sid | 2.17.10-16 | fixed |
| Debian | mrtg | forky | 2.17.10-16 | fixed |
| Debian | mrtg | trixie | 2.17.10-13+deb13u2 | fixed |
| Debian | mrtg | bookworm | 2.17.10-5+deb12u2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mrtg | source | sid | 2.17.10-15 | not yet assigned | Not reported | [1144393] |
| Debian | mrtg | source | forky | 2.17.10-15 | not yet assigned | Not reported | [1144393] |
| Debian | mrtg | source | trixie | 2.17.10-13+deb13u2 | not yet assigned | Not reported | [1144393] |
| Debian | mrtg | source | bookworm | (unfixed) | not yet assigned | Not reported | [1144393] |
Notes
[bookworm] mrtg: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [mrtg]Affected
Details (2)
2.17.10-5+deb12u2· amd64 · bookwormAffected
nvd · mrtg · debian · bookworm; nvd · mrtg · debian · 12
2.17.10-5+deb12u2· arm64 · bookwormAffected
nvd · mrtg · debian · bookworm; nvd · mrtg · debian · 12
- [mrtg-contrib]Affected
Source package: [mrtg]
Details (2)
2.17.10-5+deb12u2· all · bookwormAffected
nvd · mrtg · debian · bookworm; nvd · mrtg · debian · 12
2.17.10-5+deb12u2· all · bookwormAffected
nvd · mrtg · debian · bookworm; nvd · mrtg · debian · 12
[Debian 13 (Trixie)]
- [mrtg]Affected
Details (2)
2.17.10-13+deb13u1· amd64 · trixieAffected · Fixed:
2.17.10-13+deb13u2nvd · mrtg · debian · 13
2.17.10-13+deb13u1· arm64 · trixieAffected · Fixed:
2.17.10-13+deb13u2nvd · mrtg · debian · 13
- [mrtg-contrib]Affected
Source package: [mrtg]
Details (2)
2.17.10-13+deb13u1· all · trixieAffected · Fixed:
2.17.10-13+deb13u2nvd · mrtg · debian · 13
2.17.10-13+deb13u1· all · trixieAffected · Fixed:
2.17.10-13+deb13u2nvd · mrtg · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_57596.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-72694]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-72694]
- [https://security-tracker.debian.org/tracker/CVE-2026-72694]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72694.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2961.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]