Denial of Service Vulnerability in Sandboxie by Sandboxie Plus
CVE-2021-47831

4.6MEDIUM

Key Information:

Vendor

Sandboxie-plus

Status
Sandboxie
Vendor
CVE Published:
16 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47831?

Sandboxie 5.49.7 is affected by a denial of service vulnerability that occurs when an attacker inputs an excessively large buffer into the container folder setting. This overflow leads to the application crashing, potentially disrupting service and affecting user productivity.

Affected Version(s)

Sandboxie 5.49.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47831 - Proof of Concept

References

https://www.exploit-db.com/exploits/49844
exploit
https://sandboxie-plus.com/
product
https://www.vulncheck.com/advisories/sandboxie-denial-of-...
third-party-advisory

CVSS V4

Score:
4.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erick Galindo
JSON
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