CVE-2026-48852

{"id": "CVE-2026-48852", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48852", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-26T12:39:09.980944Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "PuTTY", "product": "PuTTY", "versions": [{"status": "affected", "version": "0.71", "lessThan": "0.84", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-25T21:16:35.543", "references": [{"url": "https://lists.tartarus.org/pipermail/putty-announce/2026/000042.html", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/ecdsa-remotely-triggerable-assertion.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "cve@mitre.org", "description": [{"lang": "en", "value": "CWE-617"}]}], "descriptions": [{"lang": "en", "value": "PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification."}, {"lang": "es", "value": "PuTTY 0.71 anterior a 0.84 tiene un fallo de aserci\u00f3n en la verificaci\u00f3n de firma ECDSA."}], "lastModified": "2026-07-24T10:10:00.197", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:putty:putty:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DBD411E8-7918-4D91-A16A-50C30DD814F4", "versionEndExcluding": "0.84", "versionStartIncluding": "0.71"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}