CVE-2026-6524
Description
A flaw was found in Wireshark, a widely used network protocol analyzer. A remote attacker could exploit a vulnerability within the MySQL protocol dissector, the part of the software that interprets MySQL network communications. This could lead to a denial of service, causing the Wireshark application to crash and become unresponsive.
Mitigation
To mitigate this issue, avoid opening untrusted capture files or analyzing untrusted network traffic with Wireshark. Additionally, the MySQL dissector can be disabled to prevent processing of MySQL protocol data. This can be done by navigating to "Analyze > Enabled Protocols..." in Wireshark and unchecking "MySQL". This action does not require a restart of the Wireshark application.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.5 | N/A | 5.5 |
| Attack Vector | Network | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | None | N/A | None |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Other
Technical Impact: Varies by Context
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