PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-76922 Wireshark Foundation CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-19T23:16:20.960Z and has not been modified since then. The Bluetooth BR/EDR FHS protocol dissector in Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7 crashes, allowing a denial-of-service attack. This vulnerability, tracked as CVE-2026-76922 with a CVSS score of 5.5, affects Wireshark installations in environments where Bluetooth traffic is monitored or analyzed. Network administrators and security teams responsible for these installations should review and verify their deployments. Evidence is limited to CVE and NVD records, so defenders should verify Wireshark versions, review protocol dissector implementation, and monitor network traffic for potential exploit attempts.

Vendor
Wireshark Foundation
Product
Wireshark
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-19
Original CVE updated
2026-08-31
Advisory published
2026-08-19
Advisory updated
2026-08-31

Who should care

Network administrators and security teams responsible for Wireshark installations, particularly in environments where Bluetooth traffic is monitored or analyzed, should review and verify their deployments. This includes teams managing network traffic analysis tools and those responsible for vulnerability management and security updates.

Technical summary

The Bluetooth BR/EDR FHS protocol dissector in Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7 crashes, allowing a denial-of-service attack. The vulnerability is tracked as CVE-2026-76922 with a CVSS score of 5.5. Affected products include Wireshark installations in environments where Bluetooth traffic is monitored or analyzed.

Defensive priority

Medium-priority defensive review recommended due to potential service disruption.

Recommended defensive actions

  • Review Wireshark's Bluetooth BR/EDR FHS protocol dissector implementation for potential crashes
  • Verify Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7 for vulnerability
  • Apply vendor patches or updates when available
  • Monitor network traffic for potential exploit attempts
  • Consider compensating controls for denial-of-service attacks

Evidence notes

Official CVE Program and NVD records confirm vulnerability in Wireshark's Bluetooth BR/EDR FHS protocol dissector, allowing denial of service. Limited details on exploitability and affected scope. Evidence is limited to CVE and NVD records. Defenders should verify Wireshark versions, review protocol dissector implementation, and monitor network traffic for potential exploit attempts.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76922 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76922

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-76922 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76922

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.