Is CVE-2022-44900 in the CISA KEV catalog?

No. CVE-2022-44900 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-44900?

CVE-2022-44900 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2022-44900?

CVE-2022-44900 has an EPSS score of 2.24% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-44900?

Upgrade py7zr on debian 11 to 0.11.3+dfsg-1+deb11u1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2022-44900

CRITICALEPSS 81th pctl

9.1

CVSS v3

NVD

Description

A directory traversal vulnerability in the SevenZipFile.extractall() function of the python library py7zr v0.20.0 and earlier allows attackers to write arbitrary files via extracting a crafted 7z file.

CWE-22Path Traversal

How to fix

Remediation Available

py7zrDebian

Fixed in:0.11.3+dfsg-1+deb11u1CVE-2022-44900

Fixed in:0.11.3+dfsg-5CVE-2022-44900

py7zrUbuntu

Fixed in:0.11.3+dfsg-4ubuntu0.1USN-7030-1

python3-py7zrUbuntu

Fixed in:0.11.3+dfsg-4ubuntu0.1USN-7030-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

2.24%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

github.com

Exploit2

Related Vulnerabilities

Other CWE-22 (Path Traversal) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-23897	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-32315	High	8.6	100%	KEV	Fix
CVE-2022-29464	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-26086	Medium	5.3	100%	KEV	Fix
CVE-2021-22005	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-5902	Critical	9.8	100%	KEV + Ransom	Fix

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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 2025-04-23.