What’s Vulnerable › Vulnerabilities

CVE-2016-6391

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-10-05 · updated 2026-06-17
• Weakness: CWE-399

Description

Cisco IOS 12.2 and 15.0 through 15.3 allows remote attackers to cause a denial of service (traffic-processing outage) via a crafted series of Common Industrial Protocol (CIP) requests, aka Bug ID CSCur69036.

Affected products

• Cisco IOS: 12.2(44)ex, 12.2(44)ex1, 12.2(46)se, 12.2(46)se1, 12.2(46)se2, 12.2(50)se (+79)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-cip
• http://www.securityfocus.com/bid/93197
• http://www.securitytracker.com/id/1036914
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-cip
• http://www.securityfocus.com/bid/93197
• http://www.securitytracker.com/id/1036914

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