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CVE-2026-15174 is an out-of-bounds write in Wireshark's Catapult DCT2000 protocol dissector, in the E-DCH parsing path of the attach_fp_info() function. The dissector accepted an unbounded no_ddi_entries value from a parsed capture header and used it to index fixed-size DDI and MAC-d PDU-size arrays. A crafted DCT2000 capture can therefore write beyond those arrays and corrupt Wireshark wmem allocator metadata, resulting in a crash. Wireshark 4.6.0 through 4.6.6 and 4.4.0 through 4.4.16 are affected.
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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.
A Wireshark vulnerability addressed by Debian DSA-6471. The plugin cites this CVE for a CVSS v2 base score of 5.0.
A Wireshark Catapult DCT2000 protocol dissector crash vulnerability that allows denial of service.
A specific vulnerability referenced in a Fedora security check for the wireshark package; the content provides CVSS v2 scoring and indicates exploit availability, but does not describe the flaw type.
A Wireshark Catapult DCT2000 protocol dissector crash vulnerability that can allow denial of service.
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.