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Wireshark — Vulnerabilities & Security Advisories 139

All 139 CVE vulnerabilities found in Wireshark, with AI-generated Chinese analysis, references, and POCs.

This page documents known security weaknesses and vulnerabilities associated with the Wireshark network protocol analyzer, categorized under software weakness classifications such as buffer overflows, injection flaws, and improper access control. It aggregates data from various sources to provide a comprehensive overview of security issues affecting this widely used open-source network traffic analysis tool. The content collected here spans from the initial release of the software through recent updates, covering vulnerabilities reported across different versions and branches of the project. This includes issues identified by the maintainers, security researchers, and external entities that have been disclosed publicly. The aggregation focuses on providing a historical and current perspective on the security posture of Wireshark, highlighting how the development team has addressed various types of defects over time. Visitors to this page can track vendor advisories and updates issued by the Wireshark development community regarding specific security patches. You can also understand the nature and impact of specific weakness classes by examining how they manifest in this particular product. Furthermore, users can look up the vulnerability history of Wireshark to assess the evolution of its security landscape, helping security professionals, network administrators, and developers make informed decisions about software integrity and risk management. This resource serves as a neutral reference for understanding the scope and severity of reported issues without promoting any specific narrative or timeline.

Vendor: Wireshark Foundation

CVE IDTitleCVSSSeverityPublished
CVE-2026-9759 NULL Pointer Dereference in Wireshark CWE-476 5.5 Medium2026-05-27
CVE-2026-6525 NULL Pointer Dereference in Wireshark CWE-476 5.5 Medium2026-05-02
CVE-2026-5404 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in Wireshark CWE-120 4.7 Medium2026-04-30
CVE-2026-5403 Heap-based Buffer Overflow in Wireshark CWE-122 7.8 High2026-04-30
CVE-2026-5656 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Wireshark CWE-22 7.0 High2026-04-30
CVE-2026-5405 Heap-based Buffer Overflow in Wireshark CWE-122 7.8 High2026-04-30
CVE-2026-5409 Uncontrolled Recursion in Wireshark CWE-674 5.5 Medium2026-04-30
CVE-2026-5408 Uncontrolled Recursion in Wireshark CWE-674 5.5 Medium2026-04-30
CVE-2026-5406 Uncontrolled Recursion in Wireshark CWE-674 5.5 Medium2026-04-30
CVE-2026-5407 Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark CWE-835 5.5 Medium2026-04-30
CVE-2026-5299 Uncontrolled Recursion in Wireshark CWE-674 5.5 Medium2026-04-30
CVE-2026-5402 Heap-based Buffer Overflow in Wireshark CWE-122 8.8 High2026-04-30
CVE-2026-5401 Uncontrolled Recursion in Wireshark CWE-674 5.5 Medium2026-04-30
CVE-2026-5654 Stack-based Buffer Overflow in Wireshark CWE-121 5.5 Medium2026-04-30
CVE-2026-5655 Use After Free in Wireshark CWE-416 5.5 Medium2026-04-30
CVE-2026-5657 Double Free in Wireshark CWE-415 5.5 Medium2026-04-30
CVE-2026-5653 Heap-based Buffer Overflow in Wireshark CWE-122 5.5 Medium2026-04-30
CVE-2026-6538 Stack-based Buffer Overflow in Wireshark CWE-121 5.5 Medium2026-04-30
CVE-2026-6537 Stack-based Buffer Overflow in Wireshark CWE-121 5.5 Medium2026-04-30
CVE-2026-6536 Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark CWE-835 5.5 Medium2026-04-30
CVE-2026-6535 Improperly Controlled Sequential Memory Allocation in Wireshark CWE-1325 5.5 Medium2026-04-30
CVE-2026-6534 Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark CWE-835 5.5 Medium2026-04-30
CVE-2026-6533 Improperly Controlled Sequential Memory Allocation in Wireshark CWE-1325 5.5 Medium2026-04-30
CVE-2026-6532 Buffer Over-read in Wireshark CWE-126 5.5 Medium2026-04-30
CVE-2026-6531 Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark CWE-835 5.5 Medium2026-04-30
CVE-2026-6530 Heap-based Buffer Overflow in Wireshark CWE-122 5.5 Medium2026-04-30
CVE-2026-6529 Heap-based Buffer Overflow in Wireshark CWE-122 5.5 Medium2026-04-30
CVE-2026-6528 Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark CWE-835 5.5 Medium2026-04-30
CVE-2026-6527 Uncontrolled Recursion in Wireshark CWE-674 5.5 Medium2026-04-30
CVE-2026-6526 NULL Pointer Dereference in Wireshark CWE-476 5.5 Medium2026-04-30

All 139 known CVE vulnerabilities affecting Wireshark with full Chinese analysis, references, and POCs where available.