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Wireshark CVE-2026-6530

| EUVD-2026-26337 MEDIUM
Heap-based Buffer Overflow (CWE-122)
2026-04-30 GitLab
Buffer Overflow Denial Of Service Heap Overflow Red Hat Suse
5.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

6
Patch released
May 01, 2026 - 19:28 nvd
Patch available
Patch available
Apr 30, 2026 - 08:16 EUVD
Analysis Generated
Apr 30, 2026 - 06:46 vuln.today
EUVD ID Assigned
Apr 30, 2026 - 06:30 euvd
EUVD-2026-26337
Analysis Generated
Apr 30, 2026 - 06:30 vuln.today
CVE Published
Apr 30, 2026 - 05:36 nvd
MEDIUM 5.5

DescriptionNVD

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

AnalysisAI

Heap buffer overflow in Wireshark's DCP-ETSI protocol dissector causes denial of service when processing malformed network packets in versions 4.6.0-4.6.4 and 4.4.0-4.4.14. A local user can trigger a crash by opening a crafted packet file or live network capture, rendering the packet analysis tool unresponsive. …

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Vendor StatusVendor

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CVE-2026-6530 vulnerability details – vuln.today
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