Is CVE-2026-8647 in the CISA KEV catalog?

No. CVE-2026-8647 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-8647?

CVE-2026-8647 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2026-8647?

CVE-2026-8647 has an EPSS score of 0.22% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-8647?

No published fix for CVE-2026-8647 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-8647

MEDIUM

4.8

CVSS v3

NVD

Description

Crypt::ScryptKDF versions through 0.010 for Perl uses insecure random number source when no CSPRNG module is available. The random_bytes function fell back to using the built-in rand() function when none of the Perl modules Crypt::PRNG, Crypt::OpenSSL::Random, Net::SSLeay, Crypt::Random, or Bytes::Random::Secure were available.

CWE-338

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Other references3

Embed a live status badge for CVE-2026-8647

Markdown

[![CVE-2026-8647](https://tridentstack.com/cve/badge/CVE-2026-8647.svg)](https://tridentstack.com/cve/CVE-2026-8647)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-8647"><img src="https://tridentstack.com/cve/badge/CVE-2026-8647.svg" alt="CVE-2026-8647"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-28.