CVE-2022-44542

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.

Published: 2022-10-31 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-44542 is rated Moderate Risk (61.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.15%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-44542

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.54% 1.15% +0.61%
2 2026-06-13 0.88% 0.54% -0.35%
3 2025-11-12 — 0.88% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-44542

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2022-44542

OS Trackers for CVE-2022-44542

vendor priority summary link
gentoo normal CVE-2022-44542: 1 GLSA(s) (202211-02), 1 atom(s) (app-text/lesspipe); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-44542

Affected software / configurations for CVE-2022-44542

Vendor Product Version Raw CPE
lesspipe_project lesspipe < 2.06 cpe:2.3:a:lesspipe_project:lesspipe:*:*:*:*:*:*:*:*

References for CVE-2022-44542

URL Tags
https://bugs.gentoo.org/865631 Issue Tracking Patch Third Party Advisory
https://github.com/wofr06/lesspipe/releases/tag/v2.06 Release Notes Third Party Advisory
https://security.gentoo.org/glsa/202211-02 Third Party Advisory
cvelogic Threat Intelligence