CVE-2025-15444: Crypt::Sodium::XS module versions prior to 0.000042, for Perl, include a vulnerable version of libsodium libs

Q: How do I fix CVE-2025-15444?

crypt\: upgrade to 0.000042. Exact commands for each OS are on this page.

Q: Is CVE-2025-15444 being exploited?

CVE-2025-15444 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-15444 affect?

CVE-2025-15444 affects crypt\. Severity is critical (CVSS 9.8). Crypt::Sodium::XS module versions prior to 0.000042, for Perl, include a vulnerable version of libsodium libsodium <= 1.0.20 or a version of libsodium released before December 30, 2025 contains a vulnerability documented as CVE-2025-69277

Q: How urgent is CVE-2025-15444?

Priority 44/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-15444 is a critical-severity flaw (CVSS 9.8) affecting crypt\. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Crypt::Sodium::XS module versions prior to 0.000042, for Perl, include a vulnerable version of libsodium libsodium <= 1.0.20 or a version of libsodium released before December 30, 2025 contains a vulnerability documented as CVE-2025-69277 https://www.cve.org/CVERecord?id=CVE-2025-69277 . The libsodium vulnerability states: In atypical use cases involving certain custom cryptography or untrusted data to crypto_core_ed25519_is_valid_point, mish

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-347
Published	2026-01-06
Last modified	2026-10-07

Publisher (CNA): CPANSec · Vendor: iamb

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-06 01:16 UTCPublished CVE record published
2026-10-07 10:10 UTCUpdated Record last modified

iamb crypt\ UPGRADE

Affected: < 0.000042

Fixed in: 0.000042

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy crypt || rpm -q crypt || crypt --version

2. UPGRADE to 0.000042 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade crypt

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade crypt

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-15444?

crypt\: upgrade to 0.000042. Exact commands for each OS are on this page.

Is CVE-2025-15444 being exploited?

CVE-2025-15444 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-15444 affect?

CVE-2025-15444 affects crypt\. Severity is critical (CVSS 9.8). Crypt::Sodium::XS module versions prior to 0.000042, for Perl, include a vulnerable version of libsodium libsodium <= 1.0.20 or a version of libsodium released before December 30, 2025 contains a vulnerability documented as CVE-2025-69277

How urgent is CVE-2025-15444?

Priority 44/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Perl vulnerabilities

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References

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