Medium 5.3Published Nov 21, 2024

CVE-2024-52616Avahi: avahi wide-area dns predictable transaction ids

Updated under an hour ago (2026-10-22 01:00 UTC)

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It affects Red Hat Enterprise Linux 9 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat Enterprise Linux 9

Exploited in the last 30 days

A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. This predictable behavior facilitates DNS spoofing attacks, allowing attackers to guess transaction IDs.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-334
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Deferred
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

Red Hat Red Hat Enterprise Linux 9 redhat:enterprise_linux	from 0:0.8-22.el9_6 not affected	CNA record
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift	4	CNA record

References

https://access.redhat.com/errata/RHSA-2025:7437vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2024-52616vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2326429issue-tracking, x-refsource-redhat
https://github.com/avahi/avahi/pull/577

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.