CVE-2026-14461
5.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| BitWizard | mtr | 0 <= 0.96 | affected |
Weaknesses
- CWE-125: CWE-125 Out-of-bounds read
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://cert.pl/en/posts/2026/07/CVE-2026-14461
- https://github.com/traviscross/mtr/commit/48e1794414d338ce47abc0f27c25ade8788af9c3
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