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8.6

PDF Explorer allows attackers to execute malicious code on the local system

CVE-2018-25217 · published 7 months ago
Summary

A security flaw in PDF Explorer lets an attacker on the same computer execute malicious code on the system. This can happen if an attacker tricks a user into entering specific data into the Custom fields settings dialog. To stay safe, update to the latest version of PDF Explorer or consider using an alternative PDF viewer.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
rttsoftware pdf_explorer 1.5.66.2
cpe:2.3:a:rttsoftware:pdf_explorer:1.5.66.2:*:*:*:*:*:*:*
Original advisory text
PDF Explorer 1.5.66.2 contains a structured exception handler (SEH) overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH records with malicious data. Atta...
PDF Explorer 1.5.66.2 contains a structured exception handler (SEH) overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH records with malicious data. Attackers can craft a payload with buffer overflow, NSEH jump, and ROP gadget chains that execute when the Custom fields settings dialog processes the malicious input in the Label field.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.6 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-787Out-of-bounds Write
Timeline
Published26 Mar 2026
Updated4 Nov 2026
First seen26 Mar 2026
Sources
CVE-2018-25217 · NVD
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