CVE-2021-47797

HIGH

Leawo Prof. Media 11.0.0.1 - Denial of Service via Oversized Activation Keycode

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47797. PoCs published by stresser.

AI-analyzed exploit summary This exploit generates a large buffer of 'A' characters to trigger a denial-of-service (DoS) in Leawo Prof. Media 11.0.0.1 by overflowing the 'Keycode' field during registration. The crash occurs due to improper input validation.

Description

Leawo Prof. Media 11.0.0.1 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized payload in the activation keycode field. Attackers can generate a 6000-byte buffer of repeated characters to trigger an application crash when pasted into the registration interface.

Exploits (1)

exploitdb WORKING POC
by stresser · pythondoswindows
https://www.exploit-db.com/exploits/50153

This exploit generates a large buffer of 'A' characters to trigger a denial-of-service (DoS) in Leawo Prof. Media 11.0.0.1 by overflowing the 'Keycode' field during registration. The crash occurs due to improper input validation.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Leawo Prof. Media 11.0.0.1
No auth needed
Prerequisites: Leawo Prof. Media 11.0.0.1 installed · Access to the Activation Center interface
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/50153
Various Sources product
https://www.leawo.org

Scores

CVSS v3 7.5
EPSS 0.0036
EPSS Percentile 27.8%
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 yes
Technical Impact partial

Details

CWE
CWE-120
Status published
Published Jan 16, 2026
Tracked Since Feb 18, 2026