NULL pointer dereference in Wireshark
CVE-2026-3202
NTS-KE protocol dissector crash in Wireshark 4.6.0 to 4.6.3 allows denial of service
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (15.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Wireshark
- Wireshark Foundation — versions 4.6.0
Weakness classification (CWE)
References
- www.wireshark.org/security/wnpa-sec-2026-06.html (Vendor Advisory)
- gitlab.com/wireshark/wireshark/-/issues/21000 (issue-tracking, permissions-required, Issue Tracking)
Frequently asked questions
- What is CVE-2026-3202?
- CVE-2026-3202 is a medium-severity vulnerability in Wireshark, classified under NULL Pointer Dereference. CVSS score: 4.7/10. Published 2026-02-25.
- How severe is CVE-2026-3202?
- Medium severity. CVSS v3 base score is 4.7 out of 10.