Loading vulnerability…
CVE-2026-76880 is a heap-corruption vulnerability in the Wireshark UMTS RRC protocol dissector. A protocol-valid, packet-controlled RB-Identity value is retained in RRC private state and subsequently used as an index into the ciphering sequence-number array. The array's first dimension is smaller than the permitted ASN.1 RB-Identity range, resulting in an out-of-bounds write that can corrupt adjacent members of heap-allocated ciphering state during dissection. Wireshark versions 4.6.0 through 4.6.7 and 4.4.0 through 4.4.18 are affected.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
9 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 RRC 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 remotely exploitable, low-complexity vulnerability requiring no privileges or user interaction that affects availability only, with a CVSS v3 vector indicating high availability impact.
A heap corruption vulnerability in Wireshark's UMTS RRC dissector where a packet-controlled RB-Identity value can be used as an out-of-bounds index into ciphering state, potentially corrupting adjacent heap fields during packet dissection.
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.