How severe is CVE-2020-16155?

CVE-2020-16155 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-16155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-16155?

CVE-2020-16155 affects Cpan. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-16155?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-16155 published?

CVE-2020-16155 was published on 2021-12-13 and last updated on 2026-06-17.

CVE-2020-16155

CVE-2020-16155 is a medium-severity vulnerability in Cpan with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cpan
Published: 2021-12-13
Last modified: 2026-06-17

Description

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

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 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-16155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-16155?: CVE-2020-16155 affects Cpan. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-16155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-16155 published?: CVE-2020-16155 was published on 2021-12-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cpan\:\:checksums_project:cpan\:\:checksums:2.12:*:*:*:*:perl:*:*