#VU103329 Asymmetric Resource Consumption (Amplification) in fastd - CVE-2025-24356

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Main Vulnerability Database Vulnerabilities #VU103329

#VU103329 Asymmetric Resource Consumption (Amplification) in fastd - CVE-2025-24356

Published: January 27, 2025


Vulnerability identifier: #VU103329
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-24356
CWE-ID: CWE-405
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
fastd
Software vendor:
NeoRaider (Matthias Schiffer)

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error when handling UDP packets in fast reconnect feature. A remote non-authenticated attacker can send small UDP packets (even a 1-byte packet is enough) to the application and force it to initiate connections to third-party systems using much larger packets.


Remediation

Install updates from vendor's website.

External links