Input validation error in Wireshark - CVE-2026-15170

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Main Vulnerability Database Vulnerabilities #VU137179

Input validation error in Wireshark - CVE-2026-15170

Published: July 9, 2026


Vulnerability identifier: #VU137179
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-15170
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the Z39.50 protocol dissector when parsing malformed packets or packet trace files. A remote attacker can inject a malformed packet onto the wire or trick the victim into opening a malformed packet trace file to cause a denial of service.

User interaction is required when exploitation is performed via a crafted packet trace file.


Affected software

Wireshark
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
openEuler
Anolis OS
Fedora
wireshark-devel
libwsutil13-debuginfo
wireshark-debugsource
libwireshark15-debuginfo
wireshark-ui-qt
libwiretap12
wireshark-debuginfo
libwireshark15
libwsutil13
wireshark
wireshark-ui-qt-debuginfo
libwiretap12-debuginfo
wireshark-doc
wireshark-cli
wireshark-help

How to mitigate CVE-2026-15170

Install security update from vendor's website.

Wireshark - addressed in versions 4.4.17, 4.6.7
wireshark-devel - update to 3.6.24-150000.3.136.1
libwsutil13-debuginfo - update to 3.6.24-150000.3.136.1
wireshark-debugsource - update to 3.6.24-150000.3.136.1
libwireshark15-debuginfo - update to 3.6.24-150000.3.136.1
wireshark-ui-qt - update to 3.6.24-150000.3.136.1
libwiretap12 - update to 3.6.24-150000.3.136.1
wireshark-debuginfo - update to 3.6.24-150000.3.136.1
libwireshark15 - update to 3.6.24-150000.3.136.1
libwsutil13 - update to 3.6.24-150000.3.136.1
wireshark - update to 3.6.24-150000.3.136.1
wireshark-ui-qt-debuginfo - update to 3.6.24-150000.3.136.1
libwiretap12-debuginfo - update to 3.6.24-150000.3.136.1
wireshark-debugsource - update to 4.4.17-1
wireshark-doc - update to 4.4.17-1
wireshark-devel - update to 4.4.17-1
wireshark-cli - update to 4.4.17-1
wireshark - update to 4.4.17-1
wireshark-help - update to 4.4.17-1
wireshark-devel - update to 4.4.17-1
wireshark - update to 4.4.17-1
wireshark-debuginfo - update to 4.4.17-1
wireshark - update to 4.6.7-1.fc44

External References

Related Security Bulletins