CVE-2026-5409
Description
A flaw was found in Wireshark. A remote attacker could exploit a vulnerability in the Monero protocol dissector, leading to a crash of the application. This could result in a denial of service (DoS) for users analyzing network traffic.
Mitigation
To mitigate this issue, users can disable the Monero protocol dissector in Wireshark. This prevents the vulnerable code from being executed when analyzing network traffic containing Monero protocol data.
To disable the dissector:
1. Open Wireshark.
2. Go to `Analyze` -> `Enabled Protocols...`.
3. In the `Enabled Protocols` dialog, uncheck the box next to `Monero`.
4. Click `OK`.
Alternatively, users can avoid opening untrusted network trace files. Disabling the dissector may affect the ability to analyze legitimate Monero protocol traffic.
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 | 5.5 | N/A | 5.5 |
| Attack Vector | Local | 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:L/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
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
