# CVE-2026-72694: mrtg: A flaw was found in MRTG

CVE-2026-72694 is fixed in 4 products on 1 platform, first by ALSA-2026:57596, released August 20, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-72694
- Priority: High
- CVSS: 7.1 (important)
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 11, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mrtg Debian 13.5 (trixie) | 2.17.10-13+deb13u2 | [DEBIAN-CVE-2026-72694](https://patchblox.com/security/data/fix/linux/debian-cve-2026-72694.md) | Aug 25, 2026 |
| Linux | mrtg Debian 14 | 2.17.10-15 | [DEBIAN-CVE-2026-72694](https://patchblox.com/security/data/fix/linux/debian-cve-2026-72694.md) | Aug 25, 2026 |
| Linux | mrtg Fedora 43 | 2.17.10-13.fc43 | [FEDORA-2026-4522F50B2C](https://patchblox.com/security/data/fix/linux/fedora-2026-4522f50b2c.md) | Aug 26, 2026 |
| Linux | mrtg RHEL 10 | 2.17.10-11.el10_0.1 | [RHSA-2026:87255](https://patchblox.com/security/data/fix/linux/rhsa-2026-87255.md) | Aug 21, 2026 |
| Linux | mrtg RHEL 8 | 0:2.17.7-1.el8_10.1 | [RHSA-2026:65832](https://patchblox.com/security/data/fix/linux/rhsa-2026-65832.md) | Sep 13, 2026 |
| Linux | mrtg RHEL 9 | 0:2.17.7-12.el9_8.1 | [RHSA-2026:57600](https://patchblox.com/security/data/fix/linux/rhsa-2026-57600.md) | Aug 21, 2026 |
| Linux | mrtg almalinux 10 | 2.17.10-12.el10_2.1 | [ALSA-2026:57596](https://patchblox.com/security/data/fix/linux/alsa-2026-57596.md) | Aug 20, 2026 |
| Linux | mrtg almalinux 8 | 2.17.7-1.el8_10.1 | [ALSA-2026:65832](https://patchblox.com/security/data/fix/linux/alsa-2026-65832.md) | Sep 9, 2026 |
| Linux | mrtg almalinux 9 | 2.17.7-12.el9_8.1 | [ALSA-2026:57600](https://patchblox.com/security/data/fix/linux/alsa-2026-57600.md) | Aug 20, 2026 |
| Linux | mrtg ol 10 | 0:2.17.10-12.el10_2.1 | [ELSA-2026-57596](https://patchblox.com/security/data/fix/linux/elsa-2026-57596.md) | Aug 20, 2026 |
| Linux | mrtg ol 8 | 0:2.17.7-1.el8_10.1 | [ELSA-2026-65832-0](https://patchblox.com/security/data/fix/linux/elsa-2026-65832-0.md) | Sep 9, 2026 |
| Linux | mrtg ol 9 | 0:2.17.7-12.0.1.el9_8.1 | [ELSA-2026-57600](https://patchblox.com/security/data/fix/linux/elsa-2026-57600.md) | Aug 20, 2026 |
| Linux | mrtg rocky 10 | 0:2.17.10-12.el10_2.1 | [RLSA-2026:57596](https://patchblox.com/security/data/fix/linux/rlsa-2026-57596.md) | Aug 21, 2026 |
| Linux | mrtg rocky 8 | 0:2.17.7-1.el8_10.1 | [RLSA-2026:65832](https://patchblox.com/security/data/fix/linux/rlsa-2026-65832.md) | Sep 9, 2026 |
| Linux | mrtg rocky 9 | 0:2.17.7-12.el9_8.1 | [RLSA-2026:57600](https://patchblox.com/security/data/fix/linux/rlsa-2026-57600.md) | Aug 21, 2026 |
| Linux | mrtg-debuginfo Fedora 43 | 2.17.10-13.fc43 | [FEDORA-2026-4522F50B2C](https://patchblox.com/security/data/fix/linux/fedora-2026-4522f50b2c.md) | Aug 26, 2026 |
| Linux | mrtg-debugsource Fedora 43 | 2.17.10-13.fc43 | [FEDORA-2026-4522F50B2C](https://patchblox.com/security/data/fix/linux/fedora-2026-4522f50b2c.md) | Aug 26, 2026 |
| Linux | mrtg-selinux Fedora 43 | 2.17.10-13.fc43 | [FEDORA-2026-4522F50B2C](https://patchblox.com/security/data/fix/linux/fedora-2026-4522f50b2c.md) | Aug 26, 2026 |
| Linux | mrtg-selinux almalinux 10 | 2.17.10-12.el10_2.1 | [ALSA-2026:57596](https://patchblox.com/security/data/fix/linux/alsa-2026-57596.md) | Aug 20, 2026 |
| Linux | mrtg-selinux ol 10 | 0:2.17.10-12.el10_2.1 | [ELSA-2026-57596](https://patchblox.com/security/data/fix/linux/elsa-2026-57596.md) | Aug 20, 2026 |

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Data as of 2026-11-09T19:38:12Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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