What’s Vulnerable › Vulnerabilities

CVE-2016-1426

• 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: 2016-07-15 · updated 2026-06-17
• Weakness: CWE-399

Description

Cisco IOS XR 5.x through 5.2.5 on NCS 6000 devices allows remote attackers to cause a denial of service (timer consumption and Route Processor reload) via crafted SSH traffic, aka Bug ID CSCux76819.

Affected products

• Cisco IOS XR Software: 5.0.0, 5.0.1, 5.0_base, 5.1.0, 5.1.1, 5.1.1.k9sec (+8)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160713-ncs6k
• http://www.securityfocus.com/bid/91748
• http://www.securitytracker.com/id/1036295
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160713-ncs6k
• http://www.securityfocus.com/bid/91748
• http://www.securitytracker.com/id/1036295

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