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CVE-2026-84852— Reader Tools PDF Reader App File ActSplashNew.handleDeeplink path traversal

Quick assessment

Affected
Reader Tools PDF Reader App
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.

在 Android 平台上的 Reader Tools PDF Reader App 98.8 版本中发现了一个安全漏洞。受影响的元素是 File Handler 组件中的 函数。对参数 的操作会导致路径遍历（Path Traversal）漏洞。该攻击需要以本地方式进行（即需要本地访问权限）。该漏洞的利用方式已公开披露，并可能已被利用。研究人员早在披露前就联系了软件供应商，但供应商未作任何回应。

CVSS 4.4 · Medium

Possible ATT&CK Techniques 1 AI

T1079
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I. Basic Information for CVE-2026-84852

Vulnerability Information
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Vulnerability Title
Reader Tools PDF Reader App File ActSplashNew.handleDeeplink path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Reader Tools PDF Reader App 98.8 on Android. The affected element is the function ActSplashNew.handleDeeplink of the component File Handler. The manipulation of the argument _display_name leads to path traversal. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
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
Reader Tools PDF Reader App 98.8 cpe:2.3:a:reader_tools:pdf_reader_app:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-84852

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III. Intelligence Information for CVE-2026-84852

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Other References for CVE-2026-84852 (1)

Other References for CVE-2026-84852 (4)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-84852

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