CVE-2026-8733 Investintech SlimPDFReader SlimPDFReader.exe sub_3B4610 stack-based overflow
A stack-based buffer overflow in SlimPDFReader allows remote attackers to execute arbitrary code via a malicious PDF file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-8733?
CVE-2026-8733 is a medium-severity memory corruption vulnerability in Investintech SlimPDFReader, published on 17 May 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in Investintech SlimPDFReader up to 2.0.13. Affected by this vulnerability is the function sub_3B4610 of the file SlimPDFReader.exe. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor responded to the initial vulnerability report by the researcher with a note that the product is discontinued. This vulnerability only affects products that are no longer supported by the maintainer.
Which versions are affected by CVE-2026-8733?
How do I fix CVE-2026-8733?
No fix has been published for CVE-2026-8733 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-8733 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8733 exists.
Sources
Also known as GHSA-j7p9-2c5r-5rg7.