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Advisory severityMedium5.5Red Hat Linux

Medium [CVE-2026-15172] Denial of service via FMP/NOTIFY protocol dissector crash

This medium-severity Red Hat Linux advisory covers CVE-2026-15172 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-15172 Source published Source updated

VulniPulse record published Record updated

CVE-2026-15172
Affected products & platforms
Red Hat LinuxRed Hat Enterprise Linux
Open source advisory

Summary

FMP/NOTIFY protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service A flaw was found in Wireshark. A local user could exploit this vulnerability by processing a specially crafted FMP/NOTIFY protocol packet.

This could lead to a denial of service (DoS) due to a crash in the protocol dissector, making the application unavailable. The vulnerability requires user interaction, as an attacker must trick a local user into opening a malicious packet capture file, limiting the attack surface.

Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H). Weakness: CWE-1286.

Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7.

Red Hat does not currently list a fixing RHSA for this CVE.

Affected products named by the advisory: Red Hat package: wireshark.

Is CVE-2026-15172 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-15172 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-15172?

The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • To mitigate this issue, users should avoid opening untrusted or suspicious packet capture files with Wireshark. Restricting access to systems running Wireshark and ensuring that only trusted network captures are analyzed can further reduce the risk of exploitation.

Official advisory · high-confidence parse· fetched 11 days ago·verify at source

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