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Cisco Snort 3 Detection Engine Flaws Allow Unauthenticated Remote DoS Across Multiple Cisco Products

1 fonte(s) · 1 atualização(ões) · publicado 21/10/2026 13:00 · coletado há 2 dias

Baseado só no resumo do feed. O site da fonte não liberou o texto completo para o Tifon, então esta análise saiu apenas do resumo publicado no feed e pode estar incompleta. Ela é atualizada quando outra fonte cobrir o assunto. Ler na fonte original ↗

Cisco published an advisory covering multiple vulnerabilities in the Snort 3 Detection Engine that affect several Cisco products. An unauthenticated, remote attacker could force the engine to restart unexpectedly, causing a denial of service (DoS). Cisco rates the Security Impact Rating as Medium and has released software updates. No workarounds exist. The advisory is part of Cisco's October 21, 2026 bundled publication, and the article does not report active exploitation.

Detalhes técnicos

  • CVEs: CVE-2026-20019, CVE-2026-20179, CVE-2026-20197, CVE-2026-76489.
  • Impact: unexpected restart of the Snort 3 Detection Engine, resulting in DoS.
  • Attack conditions: unauthenticated and remote.
  • The article does not give the root causes, specific affected products or versions.
  • Related reference: Cisco's "Snort 3 Security Hardening Release: October 2026" documents fixes in Open Source Snort 3.

Remediação

  • Apply the Cisco software updates referenced in advisory cisco-sa-snort3-misc-dos-6mB22qAK.
  • No workarounds are available, so patching is the only mitigation.

Linha do tempo

  1. sec.cloudapps.cisco.com ↗ · pub. 21/10/2026 13:00 · coletado 21/10 14:00 primeiro registro só resumo do feed

    Cisco Snort 3 Detection Engine Flaws Allow Unauthenticated Remote DoS Across Multiple Cisco Products

    ler a análise desta fonte

    Cisco published an advisory covering multiple vulnerabilities in the Snort 3 Detection Engine that affect several Cisco products. An unauthenticated, remote attacker could force the engine to restart unexpectedly, causing a denial of service (DoS). Cisco rates the Security Impact Rating as Medium and has released software updates. No workarounds exist. The advisory is part of Cisco's October 21, 2026 bundled publication, and the article does not report active exploitation.

    Technical Details

    • CVEs: CVE-2026-20019, CVE-2026-20179, CVE-2026-20197, CVE-2026-76489.
    • Impact: unexpected restart of the Snort 3 Detection Engine, resulting in DoS.
    • Attack conditions: unauthenticated and remote.
    • The article does not give the root causes, specific affected products or versions.
    • Related reference: Cisco's "Snort 3 Security Hardening Release: October 2026" documents fixes in Open Source Snort 3.

    Remediation

    • Apply the Cisco software updates referenced in advisory cisco-sa-snort3-misc-dos-6mB22qAK.
    • No workarounds are available, so patching is the only mitigation.