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CVE-2026-3201 is a denial-of-service vulnerability in Wireshark's USB HID protocol dissector affecting Wireshark 4.6.0 through 4.6.3 and 4.4.0 through 4.4.13. The flaw is in the USB HID report descriptor parsing path, specifically the parse_report_descriptor() function in packet-usb-hid.c, which fails to enforce an upper bound before growing an internal array with wmem_array_grow(). Crafted HID report descriptor data containing malicious USAGE_MINIMUM and USAGE_MAXIMUM values can cause excessive sequential memory allocation and very large iteration ranges during parsing. The vulnerable input can be delivered either through malformed USB HID traffic or through a crafted packet capture file, resulting in memory exhaustion while Wireshark or TShark dissects the data.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Referenced as part of the Wireshark 4.6.8 advisory/plugin CVE list, but not described individually in the content.
A memory exhaustion vulnerability in Wireshark's USB HID protocol dissector that can cause excessive memory consumption when processing malformed packets or malformed packet trace files.
A denial-of-service vulnerability in Wireshark caused by improperly controlled sequential memory allocation in the USB HID protocol dissector, leading to memory exhaustion.
A denial-of-service resource exhaustion vulnerability in Wireshark's USB HID dissector where parse_report_descriptor() can be forced by a crafted capture file to allocate excessive memory due to missing bounds checks on usage range expansion.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.