CVE-2026-6536: Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Published Apr 30, 2026
·Updated
DLMS/COSEM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4
Affected Software
2 affected components
Wireshark Wireshark>=4.6.0<=4.6.4
Wireshark Wireshark>=4.6.0<=4.6.4
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 4.6.5
Event History
Apr 30, 2026
CVE Published
via MITRE·05:36 AM
Data Sourced
via MITRE·05:36 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
Dec 24, 58314
Event
via FIRST·01:05 AM
Frequently Asked Questions
1
What is the severity of CVE-2026-6536?
CVE-2026-6536 has been classified with a moderate severity level due to the potential for an infinite loop causing denial of service.
2
How do I fix CVE-2026-6536?
To mitigate CVE-2026-6536, upgrade to Wireshark version 4.6.5 or later where this vulnerability has been addressed.
3
What versions of Wireshark are affected by CVE-2026-6536?
CVE-2026-6536 affects Wireshark versions from 4.6.0 to 4.6.4.
4
What are the implications of CVE-2026-6536 for users?
Users of the affected Wireshark versions may experience application crashes or freezing due to the infinite loop.
5
Is there a workaround for CVE-2026-6536 before upgrading?
There are no known workarounds for CVE-2026-6536; upgrading is the recommended solution.