{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-14461", "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "state": "PUBLISHED", "assignerShortName": "CERT-PL", "dateReserved": "2026-07-02T08:57:32.810Z", "datePublished": "2026-07-10T10:38:28.947Z", "dateUpdated": "2026-07-10T10:38:28.947Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "shortName": "CERT-PL", "dateUpdated": "2026-07-10T10:38:28.947Z"}, "title": "Out-of-bound read in mtr", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds read", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-540", "descriptions": [{"lang": "en", "value": "CAPEC-540 Overread Buffers"}]}], "affected": [{"vendor": "BitWizard", "product": "mtr", "repo": "https://github.com/traviscross/mtr/", "programFiles": ["ui/asn.c"], "programRoutines": [{"name": "ipinfo_lookup()"}], "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "0.96", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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.\u00a0ipinfo_lookup() function uses the length of the response as the\u00a0end-of-message boundary for dn_expand() function.\u00a0The result is a reliable crash.\n\n\nThis issue exists in the mtr through version 0.96 and it was fixed in commit\u00a048e1794414d338ce47abc0f27c25ade8788af9c3.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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.&nbsp;ipinfo_lookup() function uses the length of the response as the&nbsp;end-of-message boundary for dn_expand() function.&nbsp;The result is a reliable crash.<div><br></div><div>This issue exists in the mtr through version 0.96 and it was fixed in commit&nbsp;48e1794414d338ce47abc0f27c25ade8788af9c3.</div>"}]}], "tags": ["x_open-source"], "references": [{"url": "https://cert.pl/en/posts/2026/07/CVE-2026-14461", "tags": ["third-party-advisory"]}, {"url": "https://github.com/traviscross/mtr/commit/48e1794414d338ce47abc0f27c25ade8788af9c3", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.1, "vectorString": "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"}}], "credits": [{"lang": "en", "value": "Micha\u0142 Majchrowicz (AFINE Team)", "type": "finder"}, {"lang": "en", "value": "Marcin Wyczechowski (AFINE Team)", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.3"}}}}

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