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CVE-2026-92205— BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability

Quick assessment

Affected
BusyBox BusyBox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

BusyBox 的 libarchive 组件存在符号链接目录遍历漏洞，可导致攻击者在受影响的 BusyBox 安装中创建任意文件。利用此漏洞需要用户交互：目标用户必须访问恶意网页或打开恶意文件。 该漏洞具体存在于 libarchive 组件中，原因是未对用户提供的路径进行充分验证，便将其用于文件操作。攻击者可利用此漏洞，在当前用户权限上下文中创建文件。该漏洞编号为 ZDI-CAN-27556。

AI Predicted 6.5 Difficulty: Easy

Affected Version Matrix 1

VendorProduct Version RangeStatus
BusyBox BusyBox 1.37.0 affected
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I. Basic Information for CVE-2026-92205

Vulnerability Information
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Vulnerability Title
BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
BusyBox BusyBox 1.37.0 -

II. Public POCs for CVE-2026-92205

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III. Intelligence Information for CVE-2026-92205

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Other References for CVE-2026-92205 (1)

IV. Related Vulnerabilities

Same product: BusyBox
Same vendor: BusyBox
Same weakness: CWE-22

V. Comments for CVE-2026-92205

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