What’s Vulnerable › Vulnerabilities

CVE-2018-0254

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-04-19 · updated 2026-08-11
• Weakness: CWE-693

Description

A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435.

Affected products

• Cisco Firepower Threat Defense Software: 6.1.0.5, 6.2.0.2, 6.2.1, 6.2.2

References

• http://www.securityfocus.com/bid/103940
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2
• http://www.securityfocus.com/bid/103940
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2

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