CVE-2020-16156

HIGH EPSS 51.7%
Published Dec 13, 20214y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Dec 13, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

CPAN 2.28 allows Signature Verification Bypass.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
51.7% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-347

Affected Products 4

VendorProductVersionRange
perlcomprehensive_perl_archive_network2.28any
perlcomprehensive_perl_archive_network2.28any
fedoraprojectfedora34any
fedoraprojectfedora35any

References 6

  • blogs.perl.org http://blogs.perl.org/users/neilb/2021/11/addressing-cpan-vulnerabilities-related-to-checksums.html
    ExploitThird Party Advisory
  • blog.hackeriet.no https://blog.hackeriet.no/cpan-signature-verification-vulnerabilities/
    ExploitThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/10/msg00017.html
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SD6RYOJII7HRJ6WVORFNVTYNOFY5JDXN/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SZ32AJIV4RHJMLWLU5QULGKMMIHYOMDC/
  • metacpan.org https://metacpan.org/pod/distribution/CPAN/scripts/cpan
    ProductThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.