CVE-2020-2253

Description

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

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory jenkins.io
Affected: Jenkins project Jenkins Email Extension Plugin
Published at:
Updated at:

References

Link Tags
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1851 vendor advisory
http://www.openwall.com/lists/oss-security/2020/09/16/3 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-2253?
CVE-2020-2253 has been scored as a medium severity vulnerability.
How to fix CVE-2020-2253?
To fix CVE-2020-2253, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-2253 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-2253 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-2253?
CVE-2020-2253 affects Jenkins project Jenkins Email Extension Plugin.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.