CVE-2019-25733 NetShareWatcher 1.5.8.0 SEH Buffer Overflow
Local attackers can execute arbitrary code via a buffer overflow in the Restrictions filter field of NetShareWatcher.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25733?
CVE-2019-25733 is a high-severity memory corruption vulnerability in nsauditor NetShareWatcher, published on 4 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NetShareWatcher 1.5.8.0 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying malicious input. Attackers can craft a payload with overwritten SEH and NSEH pointers through the Restrictions custom filter field to trigger code execution when the Find function is invoked.
Weakness: CWE-120
Which versions are affected by CVE-2019-25733?
How do I fix CVE-2019-25733?
No fix has been published for CVE-2019-25733 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-2019-25733 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25733 exists.
Sources
Also known as GHSA-mm3v-396c-c9gv.