Security readout for executives and security teams
Plain-English summary
Avahi can make wide-area DNS transaction IDs predictable after startup. That weakens the random value DNS uses to match replies, increasing the chance of DNS spoofing. The impact is integrity-focused and rated medium, not a confirmed breach indicator.
Executive priority
Treat this as a moderate patch-management issue. It is not listed as actively exploited in the supplied evidence, but it can undermine DNS trust on affected systems and should be handled through normal vendor advisory remediation windows.
Technical view
The flaw is CWE-334: Avahi initializes DNS transaction IDs randomly once, then increments them sequentially. A network attacker may be able to predict IDs and spoof DNS responses. CVSS is 5.3, AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Likely exposure
Exposure is most relevant to systems using Avahi packages in affected Red Hat platforms: RHEL 8, RHEL 9 avahi 0:0.8-22.el9_6, and OpenShift 4 RHCOS. RHEL 7 status is listed as unknown in the source bundle.
Exploitation context
The bundle does not show KEV listing or any cited source confirming active exploitation. The realistic concern is DNS spoofing where Avahi wide-area DNS behavior is reachable and trusted in the environment.
Researcher notes
Evidence identifies predictable transaction IDs in Avahi wide-area DNS and maps affected Red Hat products. The bundle does not provide exploit proof, detailed attack prerequisites beyond network reachability, or complete fixed-version data. Published date is 2024-11-21; updated date is 2026-06-29.
Mitigation direction
- Review Red Hat RHSA-2025:7437 for applicable vendor updates.
- Apply vendor-provided Avahi or platform updates where available.
- Check Red Hat CVE guidance before changing unsupported configurations.
- Limit Avahi exposure where business requirements permit.
- Prioritize affected Red Hat and OpenShift assets over unknown-status systems.
Validation and detection
- Inventory hosts running avahi-daemon or avahi packages.
- Identify RHEL 8, RHEL 9, and OpenShift 4 RHCOS assets.
- Compare installed package status against Red Hat advisory guidance.
- Confirm whether Avahi wide-area DNS functionality is enabled or reachable.
- Track RHEL 7 separately because status is listed as unknown.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-334: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-52616 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4redhatVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineredhat
Made public.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Source timelineredhat
Reported to Red Hat.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2025:7437CVE reference, redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2024-52616CVE reference, redhat · vdb-entry, x_refsource_REDHAT
- RHBZ#2326429CVE reference, redhat · issue-tracking, x_refsource_REDHAT
- https://github.com/avahi/avahi/pull/577CVE reference, redhat
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Small Space of Random Values
Small Space of Random Values represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.