CVE-2021-38371

{"id": "CVE-2021-38371", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-08-10T15:15:08.310", "references": [{"url": "https://nostarttls.secvuln.info", "tags": ["Tool Signature"], "source": "cve@mitre.org"}, {"url": "https://www.exim.org", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt", "tags": ["Broken Link", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://nostarttls.secvuln.info", "tags": ["Tool Signature"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.exim.org", "tags": ["Product"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.exim.org/static/doc/security/CVE-2021-38371.txt", "tags": ["Broken Link", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-74"}]}], "descriptions": [{"lang": "en", "value": "The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending."}, {"lang": "es", "value": "La funci\u00f3n STARTTLS en Exim versiones hasta 4.94.2, permite la inyecci\u00f3n de respuestas (buffering) durante el env\u00edo MTA SMTP"}], "lastModified": "2025-11-03T22:15:50.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DD6DD0B4-A0DA-44C6-91B3-418936196213", "versionEndIncluding": "4.94.2"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}