CVE-2026-5407
wireshark: SMB2 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
CVE-2026-5407 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-5407, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0014
3rd percentile
SMB2 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| wireshark · Debian 13.5 (trixie) | 4.4.15-0+deb13u1 | DEBIAN-CVE-2026-5407 | May 15, 2026 |
| wireshark · Debian 14 | 4.6.5-1 | DEBIAN-CVE-2026-5407 | May 15, 2026 |
| wireshark · sles 15.7 | 4.6.7-150700.21.11.1 | SUSE-SU-2026:3501-1 | Aug 5, 2026 |
| wireshark-cli · amzn 2023 | 1:4.6.6-1.amzn2023.0.1 | ALAS2023-2026-1904 | Jul 6, 2026 |
| wireshark-cli-debuginfo · amzn 2023 | 1:4.6.6-1.amzn2023.0.1 | ALAS2023-2026-1904 | Jul 6, 2026 |
| wireshark-debugsource · amzn 2023 | 1:4.6.6-1.amzn2023.0.1 | ALAS2023-2026-1904 | Jul 6, 2026 |
| wireshark-devel · amzn 2023 | 1:4.6.6-1.amzn2023.0.1 | ALAS2023-2026-1904 | Jul 6, 2026 |
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