Predictable Seed in Pseudo-Random Number Generator (PRNG) in Avahi - CVE-2024-52616
Published: December 11, 2024 / Updated: April 9, 2026
Vulnerability identifier: #VU101681
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-52616
CWE-ID: CWE-337
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: avahi.org
Affected software:
Avahi
Avahi
Detailed vulnerability description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to software initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. A remote attacker can predict subsequent transaction IDs and perform DNS spoofing attack.
How to mitigate CVE-2024-52616
Install update from vendor's website.