CVE catalog
CVE-2026-14461
mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response th
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.45% · Oct 25, 2026
mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression pointer in the answer NAME field. ipinfo_lookup() function uses the length of the response as the end-of-message boundary for dn_expand() function. The result is a reliable crash. This issue exists in the mtr through version 0.96 and it was fixed in commit 48e1794414d338ce47abc0f27c25ade8788af9c3.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | mtr | sid | 0.96-2 | fixed |
| Debian | mtr | forky | 0.96-2 | fixed |
| Debian | mtr | trixie | 0.95-1.1 | vulnerable |
| Debian | mtr | bookworm | 0.95-1 | vulnerable |
| Cpe | mtr | Not reported | Not reported | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | mtr | source | sid | 0.96-2 | not yet assigned | Not reported | [1143069] |
| Debian | mtr | source | forky | 0.96-2 | not yet assigned | Not reported | [1143069] |
| Debian | mtr | source | trixie | (unfixed) | not yet assigned | Not reported | [1143069] |
| Debian | mtr | source | bookworm | (unfixed) | not yet assigned | Not reported | [1143069] |
Notes
[trixie] mtr: Minor issue [bookworm] mtr: Minor issue, OOB read
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [mtr]Affected
Details (2)
0.95-1· amd64 · bookwormAffected
nvd · mtr · debian · bookworm; nvd · mtr · debian · 12
0.95-1· arm64 · bookwormAffected
nvd · mtr · debian · bookworm; nvd · mtr · debian · 12
- [mtr-tiny]Affected
Source package: [mtr]
Details (2)
0.95-1· amd64 · bookwormAffected
nvd · mtr · debian · bookworm; nvd · mtr · debian · 12
0.95-1· arm64 · bookwormAffected
nvd · mtr · debian · bookworm; nvd · mtr · debian · 12
[Debian 13 (Trixie)]
- [mtr]Affected
Details (4)
0.95-1.1+b1· amd64 · trixieAffected
nvd · mtr · debian · 13
0.95-1.1+b2· arm64 · trixieAffected
nvd · mtr · debian · 13
0.96-1~bpo13+1· amd64 · trixie-backportsAffected
nvd · mtr · debian · 13
0.96-1~bpo13+1· arm64 · trixie-backportsAffected
nvd · mtr · debian · 13
- [mtr-tiny]Affected
Source package: [mtr]
Details (4)
0.95-1.1+b1· amd64 · trixieAffected
nvd · mtr · debian · 13
0.95-1.1+b2· arm64 · trixieAffected
nvd · mtr · debian · 13
0.96-1~bpo13+1· amd64 · trixie-backportsAffected
nvd · mtr · debian · 13
0.96-1~bpo13+1· arm64 · trixie-backportsAffected
nvd · mtr · debian · 13
Observed:
References
- [https://cert.pl/en/posts/2026/07/CVE-2026-14461]
- [https://github.com/traviscross/mtr/commit/48e1794414d338ce47abc0f27c25ade8788af9c3]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-14461]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-14461]
- [https://security-tracker.debian.org/tracker/CVE-2026-14461]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14461.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]