mtr through 0.95, in certain privileged contexts, mishandles execution of a program specified by the MTR_PACKET environment variable. NOTE: mtr on macOS may often have Sudo rules, as an indirect consequence of Homebrew not installing setuid binaries.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - mtr through 0.95, in certain privileged contexts, mishandles execution of a program specified by the     MTR_PACKET environment variable. NOTE: mtr on macOS may often have Sudo rules, as an indirect consequence     of Homebrew not installing setuid binaries. (CVE-2025-49809)

Note that Nessus relies on the presence of the package as reported by the vendor.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1102 advisory.

    mtr through 0.95, in certain privileged contexts, mishandles execution of a program specified by the     MTR_PACKET environment variable. (CVE-2025-49809)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of mtr installed on the remote host is prior to 0.92-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2937 advisory.

    mtr through 0.95, in certain privileged contexts, mishandles execution of a program specified by the     MTR_PACKET environment variable. (CVE-2025-49809)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
244753	Linux Distros Unpatched Vulnerability : CVE-2025-49809	Nessus	Misc.	high
243492	Amazon Linux 2023 : mtr, mtr-gtk (ALAS2023-2025-1102)	Nessus	Amazon Linux Local Security Checks	high
243258	Amazon Linux 2 : mtr (ALAS-2025-2937)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2025-49809

high

Tenable Plugins

high

high

high