CVE-2019-25358 FileOptimizer 14.00.2524 - Denial of Service
Attackers can crash FileOptimizer by overwriting the TempDirectory parameter in the configuration file with a large buffer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25358?
CVE-2019-25358 is a high-severity denial of service vulnerability in nikkhokkho FileOptimizer, published on 18 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FileOptimizer 14.00.2524 contains a denial of service vulnerability that allows attackers to crash the application by manipulating the FileOptimizer32.ini configuration file. Attackers can overwrite the TempDirectory parameter with a 5000-character buffer to cause the application to crash when opening options.
Weakness: CWE-1282
Which versions are affected by CVE-2019-25358?
How do I fix CVE-2019-25358?
No fix has been published for CVE-2019-25358 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-25358 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25358 exists.
Sources
Also known as GHSA-4vww-ch2x-c53p.