How severe is CVE-2024-4599?

CVE-2024-4599 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-4599 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-4599?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-4599 have an EU (EUVD) identifier?

Yes. CVE-2024-4599 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-44208.

When was CVE-2024-4599 published?

CVE-2024-4599 was published on 2024-05-07 and last updated on 2026-06-17.

CVE-2024-4599

CVE-2024-4599 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-44208
Weakness: CWE-400
Published: 2024-05-07
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2024-4599?: 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.
How severe is CVE-2024-4599?: CVE-2024-4599 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-4599 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-4599?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-4599 have an EU (EUVD) identifier?: Yes. CVE-2024-4599 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-44208.
When was CVE-2024-4599 published?: CVE-2024-4599 was published on 2024-05-07 and last updated on 2026-06-17.

References

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

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