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CVE-2026-76922 is a denial-of-service vulnerability in Wireshark's Bluetooth BR/EDR RF dissector affecting Wireshark 4.6.0 through 4.6.7 and 4.4.0 through 4.4.18. The dissector declares an L2CAP reassembly table but fails to register it. When it processes a truncated initial fragment of an L2CAP message, it invokes fragment_add_seq_next() with the unregistered table, whose callbacks are NULL. This produces a NULL control-flow dereference and crashes Wireshark or TShark during dissection of crafted fragmented Bluetooth BR/EDR L2CAP traffic.
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No public exploit code observed for this vulnerability.
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5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A denial-of-service crash in the Wireshark Bluetooth BR/EDR FHS protocol dissector.
A Wireshark vulnerability addressed by Debian DSA-6471; the advisory states the set of flaws could cause denial of service or arbitrary-code execution.
A specific vulnerability identified as CVE-2026-76922, referenced in a Nessus plugin as unpatched and associated with Debian Linux and the wireshark package.
A denial-of-service vulnerability in Wireshark/TShark's Bluetooth BR/EDR RF dissector where an unregistered L2CAP reassembly table leads to a NULL callback dereference and crash when parsing crafted fragmented L2CAP traffic.
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.