Vulnerability in Proofpoint Email Protection
CVE-2019-20634
An issue was discovered in Proofpoint Email Protection through 2019-09-08. By collecting scores from Proofpoint email headers, it is possible to build a copy-cat Machine Learning Classification model and extract insights from this model. The insights gathered allow an attacker to craft emails that receive preferable scores, with a goal of delivering malicious emails.
EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Proofpoint Email_protection
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2019-20634?
- CVE-2019-20634 is a low-severity vulnerability in Proofpoint Email Protection, classified under Incorrect Comparison. CVSS score: 3.7/10. Published 2020-03-30.
- How severe is CVE-2019-20634?
- Low severity. CVSS v3 base score is 3.7 out of 10.
- Is CVE-2019-20634 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.