# CVE-2026-5402

> Vulnerability · severity: **HIGH** (CVSS 8.8).

## Description

TLS protocol dissector heap overflow in Wireshark 4.6.0 to 4.6.4 allows denial of service and possible code execution

## Key facts

- **CVE ID:** CVE-2026-5402
- **Published:** 2026-04-30
- **CVSS severity:** HIGH
- **CVSS base score:** 8.8
- **CWE codes:** CWE-122

## Affected products

- `wireshark:wireshark`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5402

## Citation

> AI Analytics. CVE-2026-5402. Retrieved 2026-07-15 from https://api.ai-analytics.org/cve/CVE-2026-5402. Derived from NIST NVD. Licensed CC0.

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