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Vulnerability record · CVE-2022-4510 · published 26 January 2023

CVE-2022-4510: Microsoft binwalk path traversal vulnerability

Microsoft · Binwalk

A path traversal vulnerability was identified in ReFirm Labs binwalk from version 2.1.2b through 2.3.3 included. By crafting a malicious PFS filesystem file, an attacker can get binwalk's PFS extractor to extract files at arbitrary locations when binwalk is run in extraction mode (-e option). Remote code execution can be achieved by building a PFS filesystem that, upon extraction, would extract a malicious binwalk module into the folder .config/binwalk/plugins. This vulnerability is associated with program files src/binwalk/plugins/unpfs.py. This issue affects binwalk from 2.1.2b through 2.3.3 included.

7.8 CVSS 3.1 High EPSS 22% · top 2.4% CWE-22 · Path traversal
7.8CVSS 3.1 base score
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A path traversal vulnerability was identified in ReFirm Labs binwalk from version 2.1.2b through 2.3.3 included. By crafting a malicious PFS filesystem file, an attacker can get binwalk's PFS extractor to extract files at arbitrary locations when binwalk is run in extraction mode (-e option). Remote code execution can be achieved by building a PFS filesystem that, upon extraction, would extract a malicious binwalk module into the folder .config/binwalk/plugins. This vulnerability is associated with program files src/binwalk/plugins/unpfs.py. This issue affects binwalk from 2.1.2b through 2.3.3 included.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/ReFirmLabs/binwalk/pull/617 ExploitPatchThird Party Advisory
https://security.gentoo.org/glsa/202309-07
https://github.com/ReFirmLabs/binwalk/pull/617 ExploitPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2025/12/msg00022.html
https://security.gentoo.org/glsa/202309-07

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-4510), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.