Stack-Based Buffer Overflow in Investintech SlimPDFReader
CVE-2026-8733

5.3MEDIUM

Key Information:

Vendor

Investintech

Status
SlimPDFreader
Vendor
CVE Published:
17 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-8733?

A stack-based buffer overflow vulnerability exists in Investintech SlimPDFReader versions up to 2.0.13, specifically within the function sub_3B4610 of the SlimPDFReader.exe file. This vulnerability allows for remote exploitation, putting users at risk. Despite being made public, the vendor has acknowledged that the product is discontinued and will no longer receive support or updates, leaving existing users vulnerable to potential attacks.

Affected Version(s)

SlimPDFReader 2.0.0

SlimPDFReader 2.0.1

SlimPDFReader 2.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-8733 - Proof of Concept

References

https://vuldb.com/vuln/364321
vdb-entrytechnical-description
https://vuldb.com/vuln/364321/cti
signaturepermissions-required
https://vuldb.com/submit/809300
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

jonzab (VulDB User)
VulDB CNA Team
.