Description
X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Affected products
wireshark: wireshark
References3
- gitlab.com/wireshark/wireshark/-/work_items/21563 ExploitVendor Advisory
- www.wireshark.org/security/wnpa-sec-2026-108.html Vendor Advisory
- gitlab.com/wireshark/wireshark/-/work_items/21563 ExploitVendor Advisory
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 9 November 2026
- CWE
- CWE-122CWE-125
Could this be exploited in your environment?
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