What’s Vulnerable › Vulnerabilities

CVE-2015-6280

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-09-28 · updated 2026-06-17
• Weakness: CWE-287

Description

The SSHv2 functionality in Cisco IOS 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.6E before 3.6.3E, 3.7E before 3.7.1E, 3.10S before 3.10.6S, 3.11S before 3.11.4S, 3.12S before 3.12.3S, 3.13S before 3.13.3S, and 3.14S before 3.14.1S does not properly implement RSA authentication, which allows remote attackers to obtain login access by leveraging knowledge of a username and the associated public key, aka Bug ID CSCus73013.

Affected products

• Cisco IOS: 15.2(1)sy, 15.2(1)sy0a, 15.2(2)e, 15.2(2)e1, 15.2(2)e2, 15.2(2)ea1 (+42)
• Cisco IOS XE: 3.6e.0, 3.6e.0a, 3.6e.0b, 3.6e.1, 3.6e.2, 3.6e.2a (+20)

References

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-sshpk
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-sshpk/cvrf/cisco-sa-20150923-sshpk_cvrf.xml
• http://www.securitytracker.com/id/1033646
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-sshpk
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-sshpk/cvrf/cisco-sa-20150923-sshpk_cvrf.xml
• http://www.securitytracker.com/id/1033646

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