CVE-2024-4599: Denial of service vulnerability in LAN Messenger

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-07 · updated 2026-06-17
Weakness: CWE-400

Description

Remote denial of service vulnerability in LAN Messenger affecting version 3.4.0. This vulnerability allows an attacker to crash the LAN Messenger service by sending a long string directly and continuously over the UDP protocol.

Affected products

LAN Messenger: 3.4.0

References

https://www.incibe.es/en/incibe-cert/notices/aviso/denial-service-vulnerability-lan-messenger
https://www.incibe.es/en/incibe-cert/notices/aviso/denial-service-vulnerability-lan-messenger

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