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CVE-2026-76889 is an out-of-bounds write in Wireshark's UMTS FP protocol dissector. While parsing MAC-is SDU descriptors, the dissector function dissect_e_dch_t2_or_common_channel_info() increments a packet-controlled descriptor count without enforcing the bounds of two fixed 16-element arrays. An attacker can keep the descriptor continuation flag clear, causing parsing to proceed beyond entry 15 and writes to occur using index 16 or higher. The issue affects Wireshark 4.6.0 through 4.6.7 and 4.4.0 through 4.4.18.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 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 UMTS FP 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 Unity Linux vulnerability with high availability impact, requiring local access, high attack complexity, and user interaction. The supplied data identifies an available patch but no known exploits.
A vulnerability tracked as CVE-2026-76889 affecting Debian Linux systems with the Wireshark package installed; the content indicates it is unpatched/vendor unpatched.
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.