CVE-2026-5653: Heap-based Buffer Overflow in Wireshark
Published Apr 30, 2026
·Updated
DCP-ETSI protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Affected Software
3 affected components
Wireshark Wireshark>=4.6.0<=4.6.4, >=4.4.0<=4.4.14
Wireshark Wireshark>=4.4.0<=4.4.14
Wireshark Wireshark>=4.6.0<=4.6.4
Remediation
Information
Upgrade to version 4.6.5 or above
Event History
Apr 30, 2026
CVE Published
via MITRE·05:38 AM
Data Sourced
via MITRE·05:38 AM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·07:16 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-5653?
CVE-2026-5653 is classified as a denial of service vulnerability due to a heap-based buffer overflow.
2
How do I fix CVE-2026-5653?
To mitigate CVE-2026-5653, update Wireshark to version 4.6.5 or later, and 4.4.15 or later.
3
What software versions are affected by CVE-2026-5653?
Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 are affected by CVE-2026-5653.
4
How does CVE-2026-5653 impact Wireshark?
CVE-2026-5653 can lead to a crash of Wireshark when processing DCP-ETSI protocol, causing service disruption.
5
Is there a workaround for CVE-2026-5653?
Currently, there are no known workarounds for CVE-2026-5653 other than upgrading to a fixed version.