CVE-2026-6538

Stack-based Buffer Overflow in Wireshark

CVSS 5.5 MEDIUMEPSS 0.2%CWE-121

Vexday Risk Score

33Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 5.5EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

30 Apr 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

BEEP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

public PoCs found — 1

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References