CVE-2025-49809

Name: CVE-2025-49809
Creator: NVD / NIST
Published: 2025-07-04T13:15:25.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2025-49809 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.14%

3.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-829

References

Timeline

Published: Jul 4, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2025-49809?

How severe is CVE-2025-49809?

CVE-2025-49809 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2025-49809?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-49809?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST