CVE-2022-44542

CRITICALNVD 9.89.8—

9.8

lesspipe before 2.06 allows attackers to execute code via Perl Storable (pst) files, because of deserialized object destructor execution via a key/value pair in a hash.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 76.5%
KEV: Not listed

Published

November 1, 2022

Last Modified

May 5, 2025

Advisory Details (3)

Auto-updated May 28, 2026

Patch available. Sources: github_release.

generic

lesspipe: Arbitrary Code Exeecution (GLSA 202211-02) — Gentoo security

https://security.gentoo.org/glsa/202211-02

generic

865631 – (CVE-2022-44542) <app-text/lesspipe-2.06: Perl storable (pst) files security fix

https://bugs.gentoo.org/865631

github_release Patch Available

V2.06 with ShellCheck changes and a security fix

Patch available: wofr06/lesspipe v2.06

https://github.com/wofr06/lesspipe/releases/tag/v2.06

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 07:17 UTCepss_batch
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Frequently asked(5)

What is CVE-2022-44542?

CVE-2022-44542 is a critical vulnerability published on November 1, 2022. lesspipe before 2.06 allows attackers to execute code via Perl Storable (pst) files, because of deserialized object destructor execution via a key/value pair in a hash.

When was CVE-2022-44542 disclosed?

CVE-2022-44542 was first published in the National Vulnerability Database on November 1, 2022, with the most recent update on May 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-44542 actively exploited?

CVE-2022-44542 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-44542?

CVE-2022-44542 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-44542?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-44542, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2022-44542

📅 Published

🔄 Last Modified

📋 Advisory Details (3)