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PatchSiren cyber security CVE debrief

CVE-2026-76890 Wireshark Foundation CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-19T23:16:20.107Z and has not been modified since then. This CVE affects Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7, potentially causing a crash in the sharkd component, which could lead to a denial-of-service vulnerability. The vulnerability has a CVSS score of 3.1 and a CVSS severity of LOW. Network administrators and security teams should review Wireshark installations within affected versions to verify and ensure their security. Limited source detail suggests verifying Wireshark installations and monitoring for security advisories. Defensive verification tasks should include reviewing official advisories and CVE records for further information.

Vendor
Wireshark Foundation
Product
Wireshark
CVSS
LOW 3.1
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 to 4.4.18 and 4.6.0 to 4.6.7, should review and verify their installations. This includes teams managing network protocols and security updates for Wireshark. Verify Wireshark installations and monitor for security advisories related to this vulnerability.

Technical summary

A denial-of-service vulnerability exists in Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7, potentially causing a crash in the sharkd component; verify affected installations for potential issues. This vulnerability has a CVSS score of 3.1 and a CVSS severity of LOW. Network administrators and security teams should review Wireshark installations within affected versions.

Defensive priority

Low-priority defensive review recommended due to limited attack surface; verify Wireshark installations within affected versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7.

Recommended defensive actions

  • Verify Wireshark installations within affected versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7.
  • Apply vendor patches or updates when available.
  • Monitor Wireshark security advisories for further information.

Evidence notes

Evidence from official CVE and NVD sources indicates a denial-of-service vulnerability in Wireshark versions 4.4.0 to 4.4.18 and 4.6.0 to 4.6.7; verify affected installations for potential crash issues. Limited source detail suggests verifying Wireshark installations within affected versions and monitoring for security advisories. Defensive verification tasks should include reviewing official advisories and CVE records for further information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76890 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76890

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

  • CVE-2026-76890 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76890

    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.