Heap-based Buffer Overflow in Wireshark
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Wireshark Foundation · WiresharkReferences
https://access.redhat.com/errata/RHSA-2026:20600https://access.redhat.com/errata/RHSA-2026:26182https://access.redhat.com/security/cve/CVE-2026-5405https://bugzilla.redhat.com/show_bug.cgi?id=2464273https://gitlab.com/wireshark/wireshark/-/issues/21105https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5405.jsonhttps://www.wireshark.org/security/wnpa-sec-2026-17.html