What is CVE-2025-49809?

CVE-2025-49809 is a high-severity vulnerability in Mtr, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.8/10. Published 2025-07-04.

How severe is CVE-2025-49809?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2025-49809 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Mtr

CVE-2025-49809

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: 0.001 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Mtr — versions 0

Weakness classification (CWE)

CWE-829 — Inclusion of Functionality from Untrusted Control Sphere

Public proof-of-concept exploits

8-cm/kube-dump

References

Frequently asked questions

What is CVE-2025-49809?: CVE-2025-49809 is a high-severity vulnerability in Mtr, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 7.8/10. Published 2025-07-04.
How severe is CVE-2025-49809?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2025-49809 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.