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Vulnerabilities

Vulnerability · CVE-2026-6659

Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts.

Published May 8, 2026 · catalog updated Jun 17, 2026 · Crypt::PasswdMD5 versions through 1.42

Check if you run it

No confirmed exploitation is on record for CVE-2026-6659. EPSS is 0.51%. Act only if a listed version of Crypt::PasswdMD5 versions through 1.42 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Crypt::PasswdMD5 versions through 1.42).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.51%
Remediation
Advisory link
Affected products
See sources for product scope

Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-6659

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-6659. EPSS is 0.51%. Act only if a listed version of Crypt::PasswdMD5 versions through 1.42 is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-338. EPSS 0.51%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 8, 2026 · NIST NVD

    Detected

    Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.

Sources

  • CVE.orgVulnerability recordCVE-2026-6659

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-6659

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-6659

    Crypt::PasswdMD5 versions through 1.42 for Perl generates insecure random values for salts. The built-in rand function is predictable, and unsuitable for cryptography.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.