Description
NTS-KE protocol dissector crash in Wireshark 4.6.0 to 4.6.3 allows denial of service
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wireshark Foundation | Wireshark | 4.6.0 – < 4.6.4 | 4.6.4 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wireshark | 4.6.4-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wireshark | No fix yet | — |
| Ubuntu 26.04 LTS | wireshark | No fix yet | — |
| Ubuntu 25.10 | wireshark | No fix yet | — |
| Ubuntu 24.04 LTS | wireshark | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 20.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 18.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 16.04 LTS | wireshark | No fix yet | — |
| Ubuntu Pro 14.04 LTS | wireshark | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libvirt | 11.0.0-150700.4.19.1 | SUSE-SU-2026:1169-1 |
| SLES 15 SP7 | wireshark | 4.6.4-150700.21.8.1 | SUSE-SU-2026:1169-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wireshark | 4.6.4-1.1 | openSUSE-SU-2026:10274-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wireshark | 4.6.4-r0 | — |
| Alpine v3.23 | wireshark | 4.6.4-r0 | — |
Advisories 3
- WID-SEC-2026-0536 Wireshark: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Jul 16, 2026
- SUSE-SU-2026:1169-1 Security update for wireshark SUSE / openSUSE Security Updates · Apr 3, 2026
- openSUSE-SU-2026:10274-1 libwireshark19-4.6.4-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
References
- https://www.wireshark.org/security/wnpa-sec-2026-06.html
- GitLab Issue #21000 issue-tracking permissions-required