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Mrtg: mrtg daemon symlink-following chown allows local privilege escalation via pid file path manipulation (Red Hat Red Hat Enterprise Linux 10)

CVE-2026-72694
HIGH 7.1

At a glance

Source
NVD
EPSS
EPSS 0.14 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Awaiting Analysis

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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.

Weaknesses (CWE)

  • CWE-59 — Improper Link Resolution Before File Access

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Nredhat
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NNVD · secalert@redhat.com (Secondary)

European references

Affected products

ProductVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:2.17.10-12.el10_2.1 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:2.17.10-11.el10_0.1 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.17.7-1.el8_10.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:2.17.7-1.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:2.17.7-1.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:2.17.7-1.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:2.17.7-1.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:2.17.7-1.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:2.17.7-1.el8_8.1 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 0:2.17.7-12.el9_8.1 < *
Red Hat · Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:2.17.7-10.el9_2.1 < *
Red Hat · Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:2.17.7-11.el9_4.1 < *
Red Hat · Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:2.17.7-11.el9_6.1 < *
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD