---
id: CVE-2026-95387
title: >-
  SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows
  denial of service
summary: >-
  SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows
  denial of service
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-122
  - CWE-787
vendor: wireshark
product: wireshark
affected:
  - 'wireshark >= 4.4.0, < 4.4.19'
  - 'wireshark >= 4.6.0, < 4.6.9'
patched:
  - wireshark 4.6.9
published: '2026-09-29'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T01:33:55.930'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-95387'
references:
  - url: 'https://gitlab.com/wireshark/wireshark/-/work_items/21487'
    label: cve@gitlab.com
  - url: 'https://www.wireshark.org/security/wnpa-sec-2026-97.html'
    label: cve@gitlab.com
  - url: 'https://gitlab.com/wireshark/wireshark/-/work_items/21487'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-95387.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-95387'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2543033'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-95387'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-95387'
  - url: 'https://access.redhat.com/errata/RHSA-2026:84721'
  - url: 'https://access.redhat.com/errata/RHSA-2026:83546'
tags:
  - nvd
  - cve.org
  - exploit-available
  - csaf
  - vex
  - red-hat
epss: 0.00264
epssPercentile: 0.18182
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-29T15:50:16.910979Z'
ingestedAt: '2026-09-29T10:31:36.316Z'
---

## Overview

SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service

## Affected

- `wireshark >= 4.4.0, < 4.4.19`
- `wireshark >= 4.6.0, < 4.6.9`

## Remediation

Upgrade past the affected range:

- `wireshark 4.6.9`

## Vendor advisories

- **RHSA-2026:84721** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-10-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:84721)
- **RHSA-2026:83546** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · released 2026-10-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:83546)
- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-95387.json)