CVE-2019-25551 Sandboxie 5.30 Denial of Service via Program Alerts Buffer Overflow
Local attackers can crash Sandboxie by pasting an excessively long string into the Program Alerts configuration field, causing a denial of service.
- 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-2019-25551?
CVE-2019-25551 is a medium-severity denial of service vulnerability in Sandboxie, published on 21 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Sandboxie 5.30 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Program Alerts configuration field. Attackers can paste a buffer of 5000 characters into the 'Select or enter a program' field during program alert configuration to trigger an application crash.
Which versions are affected by CVE-2019-25551?
It affects 1 product.
Products include Sandboxie-Plus Sandboxie.
How do I fix CVE-2019-25551?
No fix has been published for CVE-2019-25551 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-2019-25551 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25551 exists.
Other vulnerabilities in Sandboxie
- CVE-2018-18748 Security feature bypass in n/a
- CVE-2025-64721 Sandboxie's Integer Overflow in SbieIniServer::RC4Crypt allows sandbox escape and SYSTEM compromise
- CVE-2026-34458 Sandboxie-Plus privilege escalation via INI CRLF injection bypassing EditAdminOnly
- CVE-2024-49360 Path traversal in Sandboxie
- CVE-2026-34459 Sandboxie-Plus sandbox escape via uninitialized memory leak and stack overflow in GetRawInputDeviceInfoSlave
Sources
Also known as GHSA-2fhg-mfw9-px88.