Description
Bluetooth HFP Profile protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Published: 2026-08-19
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Wireshark contains an out–of–bounds read in its Bluetooth HFP Profile protocol dissector that can be triggered by a crafted packet. The vulnerability causes Wireshark to crash, interrupting capture and analysis sessions. The impact is limited to loss of availability of the Wireshark instance, with no direct compromise of data confidentiality or integrity reported.

Affected Systems

Applications built on Wireshark Foundation:Wireshark in versions 4.6.0 through 4.6.7 and 4.4.0 through 4.4.18 are affected by this flaw.

Risk and Exploitability

The CVSS score of 5.5 indicates a medium severity. EPSS information is not available and the issue is not listed in CISA’s KEV catalog, suggesting a moderate exploitation likelihood. The most likely attack vector is the delivery of a malicious Bluetooth HFP packet to Wireshark while it is actively dissecting traffic; after the out‑of‑bounds read the application will terminate, causing a denial of service for the user.

Generated by OpenCVE AI on August 20, 2026 at 08:13 UTC.

Remediation

Vendor Solution

Upgrade to version 4.6.8 or above

OpenCVE Recommended Actions

  • Upgrade Wireshark to version 4.6.8 or later.
  • If Bluetooth HFP traffic is not required, configure capture filters to exclude it to prevent the crash.
  • Run Wireshark in an isolated environment such as a container or virtual machine to contain crashes and enable rapid restart.

Generated by OpenCVE AI on August 20, 2026 at 08:13 UTC.

Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6471-1 wireshark security update
History

Mon, 31 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*

Fri, 21 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 21 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 20 Aug 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Wireshark
Wireshark wireshark
Vendors & Products Wireshark
Wireshark wireshark

Wed, 19 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
Description Bluetooth HFP Profile protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Title Out-of-bounds Read in Wireshark
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Subscriptions

Wireshark Wireshark
cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-08-20T15:26:29.159Z

Reserved: 2026-08-19T22:44:40.531Z

Link: CVE-2026-76923

cve-icon Vulnrichment

Updated: 2026-08-20T15:22:47.178Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-19T23:16:21.083

Modified: 2026-08-31T19:16:30.550

Link: CVE-2026-76923

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-19T22:45:30Z

Links: CVE-2026-76923 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T08:15:17Z

Weaknesses