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PatchSiren cyber security CVE debrief

CVE-2026-76919 Wireshark Foundation CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-19T23:16:20.600Z and has not been modified since then. The Wireshark ESS protocol dissector vulnerability (CVE-2026-76919) allows for denial of service attacks in versions 4.4.0-4.4.18 and 4.6.0-4.6.7. Network administrators and security teams should review and apply patches to mitigate potential service disruption. Limited source detail available. Evidence is limited to CVE Program and NVD records. Defenders should verify Wireshark versions, review network traffic, and apply patches.

Vendor
Wireshark Foundation
Product
Wireshark
CVSS
MEDIUM 5.3
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 those using affected versions (4.4.0-4.4.18 and 4.6.0-4.6.7), should review and apply patches to mitigate potential service disruption. Vulnerability management and security teams should prioritize patching based on operational impact and asset inventory.

Technical summary

The Wireshark ESS protocol dissector crashes in versions 4.4.0-4.4.18 and 4.6.0-4.6.7, allowing for denial of service attacks. The vulnerability is rated as Medium severity with a CVSS score of 5.3. Affected products include Wireshark installations within these version ranges.

Defensive priority

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

Recommended defensive actions

  • Review Wireshark ESS protocol dissector versions 4.4.0-4.4.18 and 4.6.0-4.6.7 for potential service disruption
  • Apply vendor patches or updates to mitigate vulnerability
  • Monitor network traffic for potential exploitation attempts

Evidence notes

Official CVE Program and NVD records confirm vulnerability in Wireshark ESS protocol dissector versions 4.4.0-4.4.18 and 4.6.0-4.6.7, allowing denial of service. Limited source detail available. Evidence is limited to CVE Program and NVD records. Defenders should verify Wireshark versions, review network traffic, and apply patches.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76919 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76919

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

  • CVE-2026-76919 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76919

    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.