CVE-2020-2253

low-risk

Published 2020-09-16

Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.

Do I need to act?

0.04% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.8/10 Medium

NETWORK / HIGH complexity

Email Extension

Jenkins

Third Party Advisory http://www.openwall.com/lists/oss-security/2020/09/16/3

Vendor Advisory https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1851

Third Party Advisory http://www.openwall.com/lists/oss-security/2020/09/16/3

Vendor Advisory https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1851

/ 100

low-risk

Severity 15/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal