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Wireshark EUVD-2026-26309

| CVE-2026-6868 MEDIUM
Stack-based Buffer Overflow (CWE-121)
2026-04-30 GitLab
Buffer Overflow Denial Of Service Stack 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 - 19:01 nvd
Patch available
Patch available
Apr 30, 2026 - 07:01 EUVD
Analysis Generated
Apr 30, 2026 - 06:00 vuln.today
EUVD ID Assigned
Apr 30, 2026 - 05:30 euvd
EUVD-2026-26309
Analysis Generated
Apr 30, 2026 - 05:30 vuln.today
CVE Published
Apr 30, 2026 - 05:04 nvd
MEDIUM 5.5

DescriptionNVD

HTTP 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

Stack buffer overflow in Wireshark HTTP protocol dissector (versions 4.6.0-4.6.4 and 4.4.0-4.4.14) causes application crash when processing malformed HTTP packets, resulting in denial of service. Local attackers with ability to trigger packet analysis via user interaction can crash the application and disrupt network traffic inspection workflows.

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Vendor StatusVendor

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EUVD-2026-26309 vulnerability details – vuln.today
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