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CVE-2026-15166 is a stack-based buffer overflow in Wireshark's IEEE 802.11 EAPOL-Key decryption handling. In the RC4/TKIP processing path, Dot11DecryptDecryptKeyData() copies decrypted Key Data into a fixed 1024-byte stack buffer. The copy length is derived from attacker-controlled EAPOL-Key header fields and is checked against a parsed frame length rather than against the destination-buffer capacity. A malformed packet trace can therefore cause an oversized copy and corrupt stack memory. Wireshark 4.6.0 through 4.6.6 and 4.4.0 through 4.4.16 are affected.
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6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Wireshark vulnerability addressed by Debian DSA-6471; the advisory states the set of flaws could cause denial of service or arbitrary-code execution.
Referenced as part of the Wireshark 4.6.8 advisory/plugin CVE list, but not described individually in the content.
A Wireshark vulnerability in the IEEE 802.11 protocol dissector that can cause the application to crash when a user opens a malformed packet trace file.
A stack-based buffer overflow in Wireshark/tshark 802.11 EAPOL-Key decryption logic, where Dot11DecryptDecryptKeyData() can copy attacker-controlled key data into a fixed 1024-byte stack buffer, potentially causing crash or RCE-class memory corruption when WPA decryption is enabled and a valid security association exists.
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.