{"data":{"id":"03114926-9eda-43b2-97f4-769a46e16658","title":"CVE-2019-20634: An issue was discovered in Proofpoint Email Protection through 2019-09-08. By collecting scores from Proofpoint email…","summary":"CVE-2019-20634 affects Proofpoint Email Protection through 2019-09-08. By collecting scores from Proofpoint email headers, an attacker can build a copy-cat Machine Learning Classification model and extract insights from it. Those insights let the attacker craft emails that receive preferable scores in order to deliver malicious emails.","solution":"N/A -- no mitigation discussed in source.","labels":["security","research"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-20634","publishedAt":"2020-03-30T21:15:12.373Z","cveId":"CVE-2019-20634","cweIds":["CWE-697"],"cvssScore":"3.7","cvssSeverity":"low","severity":"low","attackType":["model_evasion"],"issueType":"vulnerability","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":["Proofpoint Email Protection","Proofpoint ML email classification model"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"Proofpoint Email Protection model extraction via collected email header scores","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.01636,"epssCheckedAt":"2026-11-04T18:09:12.971Z","kevDateAdded":null,"advisoryAliases":["GHSA-f9h8-wxp6-hpxv"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":"2026-10-29T06:10:02.091Z","patchAvailable":null,"disclosureDate":null,"fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["integrity"],"aiComponentTargeted":"model","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null,"fixes":[]}}