CVE-2020-16155

Name: CVE-2020-16155
Creator: NVD / NIST
Published: 2021-12-13T18:15:07.89+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.96%

Last modified Jun 17, 2026

CVE-2020-16155 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The CPAN::Checksums package 2.12 for Perl does not uniquely define signed data.. EPSS estimates a 0.96% chance of exploitation in the next 30 days.

Description

The CPAN::Checksums package 2.12 for Perl does not uniquely define signed data.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.96%

56.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Cpan\	\	checksums_project	Cpan\

References

https://blog.hackeriet.no/cpan-signature-verification-vulnerabilities/Exploit, Third Party Advisory
https://metacpan.org/pod/CPAN::ChecksumsProduct, Third Party Advisory
https://blog.hackeriet.no/cpan-signature-verification-vulnerabilities/Exploit, Third Party Advisory
https://metacpan.org/pod/CPAN::ChecksumsProduct, Third Party Advisory

Timeline

Published: Dec 13, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-16155?

The CPAN::Checksums package 2.12 for Perl does not uniquely define signed data.

How severe is CVE-2020-16155?

CVE-2020-16155 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.96% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16155?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-16155?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST