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{"cveTags": [], "descriptions": [{"lang": "en", "value": "zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition."}], "id": "CVE-2026-27171", "lastModified": "2026-02-18T04:16:01.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 2.9, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 1.4, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-02-18T04:16:01.263", "references": [{"source": "cve@mitre.org", "url": "https://7asecurity.com/blog/2026/02/zlib-7asecurity-audit/"}, {"source": "cve@mitre.org", "url": "https://7asecurity.com/reports/pentest-report-zlib-RC1.1.pdf"}, {"source": "cve@mitre.org", "url": "https://github.com/madler/zlib/issues/904"}, {"source": "cve@mitre.org", "url": "https://github.com/madler/zlib/releases/tag/v1.3.2"}, {"source": "cve@mitre.org", "url": "https://ostif.org/zlib-audit-complete/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1284"}], "source": "cve@mitre.org", "type": "Primary"}]}

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