Denial of Service Vulnerability in Leawo Prof. Media by Leawo
CVE-2021-47797

6.7MEDIUM

Key Information:

Vendor

Leawo

Status
Leawo Prof. Media
Vendor
CVE Published:
15 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47797?

Leawo Prof. Media version 11.0.0.1 is vulnerable to a Denial of Service due to improper handling of input in the activation keycode field. An attacker can exploit this vulnerability by sending an oversized payload, specifically a 6000-byte buffer filled with repeated characters. When this payload is input into the registration interface, it can trigger a crash of the application, disrupting services for legitimate users.

Affected Version(s)

Leawo Prof. Media 11.0.0.1

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-2021-47797 - Proof of Concept

References

https://www.exploit-db.com/exploits/50153
exploit
https://www.leawo.org
product
https://www.vulncheck.com/advisories/leawo-prof-media-den...
third-party-advisory

CVSS V4

Score:
6.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
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

Achilles
JSON
.