CVE-2021-47831

HIGH

Sandboxie 5.49.7 - Denial of Service via Container Folder Input Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47831. PoCs published by Erick Galindo.

AI-analyzed exploit summary This PoC demonstrates a Denial of Service (DoS) vulnerability in Sandboxie 5.49.7 by overflowing a buffer when setting the container folder path. The exploit generates a large string of 'A' characters to trigger the crash.

Description

Sandboxie 5.49.7 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the container folder input field. Attackers can paste a large buffer of repeated characters into the Sandbox container folder setting to trigger an application crash.

Exploits (1)

exploitdb WORKING POC
by Erick Galindo · pythondoswindows
https://www.exploit-db.com/exploits/49844

This PoC demonstrates a Denial of Service (DoS) vulnerability in Sandboxie 5.49.7 by overflowing a buffer when setting the container folder path. The exploit generates a large string of 'A' characters to trigger the crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Sandboxie 5.49.7
Auth required
Prerequisites: Access to Sandboxie Control interface · Ability to set the container folder path
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/49844
Various Sources product
https://sandboxie-plus.com/
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/sandboxie-denial-of-service

Scores

CVSS v3 7.5
EPSS 0.0033
EPSS Percentile 25.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/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-1284
Status published
Published Jan 16, 2026
Tracked Since Feb 18, 2026