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CVE-2026-6532

wireshark: Wireshark: Denial of service via Kismet protocol dissector crash

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · April 30, 2026

Updated · July 2, 2026

Description

A flaw was found in Wireshark. A local user could exploit a crash in the Kismet protocol dissector by enticing a victim to open a specially crafted capture file. This vulnerability leads to a denial of service, making the application unavailable.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

To mitigate this issue, users should avoid opening untrusted or suspicious capture files with Wireshark. This vulnerability requires user interaction to open a specially crafted file, and exercising caution with file sources can prevent exploitation.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-1286 · Improper Validation of Syntactic Correctness of Input