Is CVE-2019-20634 in the CISA KEV catalog?

No. CVE-2019-20634 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20634?

CVE-2019-20634 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2019-20634?

CVE-2019-20634 has an EPSS score of 1.57% (72th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2019-20634?

No published fix for CVE-2019-20634 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2019-20634

LOWEPSS 72th pctl

3.7

CVSS v3

NVD

Description

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.

CWE-697

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

1.57%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory2

Other references1

atlas.mitre.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.