CVE-2026-61371

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Microsoft AVML before 0.17.0 could follow a symlink when opening a destination output path on Unix, allowing truncation/overwrite of the symlink target. The destructive effect is performed at open-time via O_TRUNC, and can happen before full input validation completes (\u201ctruncation-before-validation\u201d)."}], "id": "CVE-2026-61371", "lastModified": "2026-07-15T20:56:32.437", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-61371", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-15T19:25:15.257019Z", "version": "2.0.3"}}]}, "published": "2026-07-15T16:16:50.307", "references": [{"source": "cve@mitre.org", "url": "https://gist.github.com/thesmartshadow/2d099071f847de8db3dc4bbaf4dfa6df"}, {"source": "cve@mitre.org", "url": "https://github.com/microsoft/avml/pull/754"}, {"source": "cve@mitre.org", "url": "https://github.com/microsoft/avml/releases/tag/v0.17.0"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://gist.github.com/thesmartshadow/2d099071f847de8db3dc4bbaf4dfa6df"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.17.0)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "inferred", "scores": [{"score": 85.0, "source": "inferred"}]}, "product": "avml", "vendor": "microsoft"}], "created": "2026-07-17T06:00:04.667169+00:00", "title": "Symlink Truncation Vulnerability in Microsoft AVML Prior to 0.17.0", "updated": "2026-07-31T04:15:04.452131+00:00", "vendors": ["microsoft", "microsoft$PRODUCT$avml"]}