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Medium severity5.8NVD Advisory· Published Nov 16, 2017· Updated Jun 17, 2026

CVE-2017-12300

CVE-2017-12300

Description

A vulnerability in the SNORT detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a file policy that is configured to block the Server Message Block Version 2 (SMB2) protocol. The vulnerability is due to the incorrect detection of an SMB2 file when the detection is based on the length of the file. An attacker could exploit this vulnerability by sending a crafted SMB2 transfer request through the targeted device. A successful exploit could allow the attacker to bypass filters that are configured to block SMB2 traffic. Cisco Bug IDs: CSCve58398.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5
  • Cisco Systems, Inc./Secure Firewall Management Center4 versions
    cpe:2.3:a:cisco:secure_firewall_management_center:2.9.10:*:*:*:*:*:*:*+ 3 more
    • cpe:2.3:a:cisco:secure_firewall_management_center:2.9.10:*:*:*:*:*:*:*
    • cpe:2.3:a:cisco:secure_firewall_management_center:2.9.11:*:*:*:*:*:*:*
    • cpe:2.3:a:cisco:secure_firewall_management_center:2.9.12:*:*:*:*:*:*:*
    • cpe:2.3:a:cisco:secure_firewall_management_center:2.9.9:*:*:*:*:*:*:*
  • Cisco Systems, Inc./ASA FirePOWER Softwarellm-create

Patches

Vulnerability mechanics

References

2

News mentions

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