CVE-2019-25551

MEDIUM

Sandboxie 5.30 Denial of Service via Program Alerts Buffer Overflow

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25551. PoCs published by Alejandra Sánchez.

AI-analyzed exploit summary This PoC exploits a buffer overflow vulnerability in Sandboxie 5.30 by generating a large buffer of 'A' characters (5000 bytes) and writing it to a file. When the content is pasted into the 'Programs Alerts' configuration field, it triggers a crash, demonstrating a Denial of Service (DoS) condition.

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.

Exploits (1)

exploitdb WORKING POC
by Alejandra Sánchez · pythondoswindows
https://www.exploit-db.com/exploits/46860

This PoC exploits a buffer overflow vulnerability in Sandboxie 5.30 by generating a large buffer of 'A' characters (5000 bytes) and writing it to a file. When the content is pasted into the 'Programs Alerts' configuration field, it triggers a crash, demonstrating a Denial of Service (DoS) condition.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Sandboxie 5.30
No auth needed
Prerequisites: Python to run the script · Sandboxie 5.30 installed on Windows 10 · User interaction to paste the buffer into the configuration field
devstral-2 · analyzed Mar 21, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit exploit
ExploitDB-46860
https://www.exploit-db.com/exploits/46860
Product product
Official Product Homepage
https://www.sandboxie.com
Third Party Advisory third-party-advisory
VulnCheck Advisory: Sandboxie 5.30 Denial of Service via Program Alerts Buffer Overflow
https://www.vulncheck.com/advisories/sandboxie-denial-of-service-via-program-alerts-buffer-overflow

Scores

CVSS v3 6.2
EPSS 0.0017
EPSS Percentile 6.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-1282 CWE-1284
Status published
Products (2)
Sandboxie/Sandboxie 5.30
sandboxie-plus/sandboxie 5.30
Published Mar 21, 2026
Tracked Since Mar 21, 2026