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Cisco discloses CVE-2026-76524: Open Source Snort 3 control channel socket allows local arbitrary command execution

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 disclosed CVE-2026-76524, a high-severity vulnerability in the control channel socket implementation of Open Source Snort 3. An authenticated local attacker with low privileges could execute arbitrary commands as the Snort 3 process user. A successful exploit also allows reading and writing Snort 3 process memory. Cisco has released software updates, and no workarounds exist. The article does not report active exploitation. The advisory is part of Cisco's October 21, 2026 advance-notification bundle and accompanies the Snort 3 Security Hardening Release for October 2026.

Detalhes técnicos

  • The root cause is a lack of authentication when a local user connects to the Snort control channel socket.
  • Exploitation requires local access: the attacker connects to the Snort 3 control channel socket as a local user.
  • Impact is arbitrary command execution as the Snort 3 process user, plus read and write access to Snort 3 process memory.
  • Cisco rates the Security Impact as High.

Remediação

  • Apply the Cisco software updates that fix this vulnerability. No workarounds are available.
  • Review the Multiple Cisco Products Snort 3 Security Hardening Release for October 2026 for related fixes and improvements.

Linha do tempo

  1. sec.cloudapps.cisco.com ↗ · pub. 21/10/2026 13:00 · coletado 21/10 14:01 primeiro registro só resumo do feed

    Cisco discloses CVE-2026-76524: Open Source Snort 3 control channel socket allows local arbitrary command execution

    ler a análise desta fonte

    Cisco disclosed CVE-2026-76524, a high-severity vulnerability in the control channel socket implementation of Open Source Snort 3. An authenticated local attacker with low privileges could execute arbitrary commands as the Snort 3 process user. A successful exploit also allows reading and writing Snort 3 process memory. Cisco has released software updates, and no workarounds exist. The article does not report active exploitation. The advisory is part of Cisco's October 21, 2026 advance-notification bundle and accompanies the Snort 3 Security Hardening Release for October 2026.

    Technical Details

    • The root cause is a lack of authentication when a local user connects to the Snort control channel socket.
    • Exploitation requires local access: the attacker connects to the Snort 3 control channel socket as a local user.
    • Impact is arbitrary command execution as the Snort 3 process user, plus read and write access to Snort 3 process memory.
    • Cisco rates the Security Impact as High.

    Remediation

    • Apply the Cisco software updates that fix this vulnerability. No workarounds are available.
    • Review the Multiple Cisco Products Snort 3 Security Hardening Release for October 2026 for related fixes and improvements.