Description
Bluetooth Attribute 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: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw is an out‑of‑bounds read in Wireshark’s Bluetooth Attribute Protocol dissector that causes the program to crash when parsing a crafted packet. The crash results in a denial of service, interrupting network analysis, but does not provide privilege escalation or arbitrary code execution. This weakness is represented by CWE‑125.

Affected Systems

The issue affects Wireshark Foundation’s Wireshark application in releases 4.6.0 through 4.6.7 and 4.4.0 through 4.4.18 on any supported platform. Users of any of those versions are vulnerable whenever the dissector processes a Bluetooth Attribute Protocol packet that triggers the out‑of‑bounds read. The vendor notes that the problem is fixed in version 4.6.8 and newer.

Risk and Exploitability

The CVSS score of 4.7 places the vulnerability in the low‑to‑moderate severity range. EPSS data is not available, and the CVE is not listed in the CISA KEV catalog. The likely attack vector involves providing a malicious packet to Wireshark, which can be a local or remote vector depending on the environment. The lack of exploit code execution limits the attacker's objectives to forcing application termination, but an unpatched system remains vulnerable to these service disruptions.

Generated by OpenCVE AI on August 20, 2026 at 09:46 UTC.

Remediation

Vendor Solution

Upgrade to version 4.6.8 or above


OpenCVE Recommended Actions

  • Upgrade Wireshark to version 4.6.8 or later.
  • After upgrading, restart the application to ensure the new code is active.
  • If an immediate upgrade is not possible, configure capture filters or disable the Bluetooth Attribute Protocol dissector so that malicious packets are not parsed until the patch is applied.

Generated by OpenCVE AI on August 20, 2026 at 09:46 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:*:*:*:*:*:*:*:*

Sat, 22 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


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

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

Wed, 19 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
Description Bluetooth Attribute 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': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Subscriptions

Wireshark Wireshark
cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-08-20T14:14:23.082Z

Reserved: 2026-08-19T22:34:14.934Z

Link: CVE-2026-76882

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-08-19T23:16:19.070

Modified: 2026-08-31T19:14:47.110

Link: CVE-2026-76882

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-19T22:35:04Z

Links: CVE-2026-76882 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T10:00:07Z

Weaknesses