Path Traversal in Reader Tools Pdf App
CVE-2026-84852
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (10.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Reader Tools Pdf App — versions 98.8
Weakness classification (CWE)
References
- docs.google.com/document/d/1g8q6UDV2EBm0UfEz2tc1eVBSxXqX5Zk8Ei30FuKAYa8/edit (exploit)
- vuldb.com/cve/CVE-2026-84852 (third-party-advisory)
- vuldb.com/submit/886201 (third-party-advisory)
- vuldb.com/vuln/398130 (technical-description, vdb-entry)
- vuldb.com/vuln/398130/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-84852?
- CVE-2026-84852 is a medium-severity vulnerability in Reader Tools Pdf App, classified under Path Traversal. CVSS score: 4.4/10. Published 2026-09-02.
- How severe is CVE-2026-84852?
- Medium severity. CVSS v3 base score is 4.4 out of 10.