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CVE-2026-72694

Mrtg: mrtg daemon symlink-following chown allows local privilege escalation via pid file path manipulation

CVSS 3.1 7.1 HIGHCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-72694

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-72694

Published

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.10-12.el10_2.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux:10.2"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.10-11.el10_0.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/o:redhat:enterprise_linux_eus:10.0"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_10.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:8::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_4.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_aus:8.4::appstream",
                        "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_4.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_aus:8.4::appstream",
                        "cpe:/a:redhat:rhel_eus_long_life:8.4::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_6.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_aus:8.6::appstream",
                        "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_6.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_aus:8.6::appstream",
                        "cpe:/a:redhat:rhel_eus_long_life:8.6::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_8.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                        "cpe:/a:redhat:rhel_tus:8.8::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-1.el8_8.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_e4s:8.8::appstream",
                        "cpe:/a:redhat:rhel_tus:8.8::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-12.el9_8.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:enterprise_linux:9::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-10.el9_2.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_e4s:9.2::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-11.el9_4.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_e4s:9.4::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "versions": [
                        {
                            "version": "0:2.17.7-11.el9_6.1",
                            "lessThan": "*",
                            "versionType": "rpm",
                            "status": "unaffected"
                        }
                    ],
                    "cpes": [
                        "cpe:/a:redhat:rhel_eus:9.6::appstream"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 6",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "unknown",
                    "cpes": [
                        "cpe:/o:redhat:rhel_els:6"
                    ]
                }

mrtg

https://access.redhat.com/downloads/content/package-browser/

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Red Hat",
                    "product": "Red Hat Enterprise Linux 7",
                    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
                    "packageName": "mrtg",
                    "defaultStatus": "affected",
                    "cpes": [
                        "cpe:/o:redhat:rhel_els:7"
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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