CVE-2026-6536

MEDIUM

Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark

Title source: cna
STIX 2.1

Description

DLMS/COSEM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4

References (3)

Core 3
Core References
Exploit, Issue Tracking, Third Party Advisory
https://gitlab.com/wireshark/wireshark/-/work_items/21065
Issue Tracking, Permissions Required issue-tracking permissions-required
GitLab Issue #21065
https://gitlab.com/wireshark/wireshark/-/issues/21065

Scores

CVSS v3 5.5
EPSS 0.0018
EPSS Percentile 7.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-835
Status published
Products (2)
wireshark/wireshark 4.6.0 - 4.6.4
Wireshark Foundation/Wireshark 4.6.0 - 4.6.5
Published Apr 30, 2026
Tracked Since Apr 30, 2026