CVE-2026-5402
high
CVSS v3
8.8
CVSS v2
—
VIR risk
8.8
Description
TLS protocol dissector heap overflow in Wireshark 4.6.0 to 4.6.4 allows denial of service and possible code execution
Predictions
Exploit likelihood
92%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-5402
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-5402.html
Vendor advisory: cve@gitlab.com — https://www.wireshark.org/security/wnpa-sec-2026-14.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | affected | |
| debian | forky | fixed | 4.6.5-1 |
| debian | sid | fixed | 4.6.5-1 |
| debian | trixie | fixed | 0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| wireshark | wireshark | {"startIncluding":"4.6.0","endIncluding":"4.6.4"} | |
References
CWEs
CWE-122
Verify integrity in audit chain (admin only). AS-IS.