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CVE-2026-7378 is an out-of-bounds read vulnerability in sharkd, the Wireshark daemon. sharkd cached display-filter evaluation bitmaps in a session-wide table keyed by filter-string text without clearing that table when a new capture was loaded. A bitmap sized for an earlier, smaller capture could therefore be reused while processing a later capture with more frames, causing sharkd_session_process_frames to read beyond the bitmap allocation and crash. Wireshark versions 4.6.0 through 4.6.4 and 4.4.0 through 4.4.14 are affected.
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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.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remotely exploitable, low-complexity denial-of-service vulnerability with no required privileges or user interaction, according to the provided CVSS v3 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
A remotely exploitable, low-complexity denial-of-service vulnerability with no required privileges or user interaction. The advisory identifies public exploit availability and a patch publication date of July 31, 2026.
A network-accessible, low-complexity unauthenticated denial-of-service vulnerability with high availability impact, according to the provided CVSS v3 vector. The plugin explicitly reports that exploits are available.
A Wireshark vulnerability referenced by the plugin; no individual technical details are provided.
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.