Vulnerability · Published Jul 4, 2025 · Assigned by mitre
CVE-2025-49809
High 7.8
In plain English
A high-severity security flaw in mtr from mtr. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 93.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.22 | mtr | 0.96-r0 | ALPINE-CVE-2025-49809 |
| Alpine:v3.23 | mtr | 0.96-r0 | ALPINE-CVE-2025-49809 |
| Alpine:v3.24 | mtr | 0.96-r0 | ALPINE-CVE-2025-49809 |
| Debian:12 | mtr | no fix listed | DEBIAN-CVE-2025-49809 |
| Debian:13 | mtr | no fix listed | DEBIAN-CVE-2025-49809 |
| Debian:14 | mtr | 0.96-1 | DEBIAN-CVE-2025-49809 |
| Ubuntu:22.04:LTS | mtr | no fix listed | UBUNTU-CVE-2025-49809 |
| Ubuntu:24.04:LTS | mtr | no fix listed | UBUNTU-CVE-2025-49809 |
| Ubuntu:25.10 | mtr | no fix listed | UBUNTU-CVE-2025-49809 |
| Ubuntu:26.04:LTS | mtr | no fix listed | UBUNTU-CVE-2025-49809 |
Affected products (as reported)
Weakness: CWE-829 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H