CVE-2011-3271

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-03 · updated 2026-06-16

Description

Unspecified vulnerability in the Smart Install functionality in Cisco IOS 12.2 and 15.1 allows remote attackers to execute arbitrary code or cause a denial of service (device crash) via crafted TCP packets to port 4786, aka Bug ID CSCto10165.

Affected products

Cisco IOS: 12.2, 15.1

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=24115
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4f.shtml
http://tools.cisco.com/security/center/viewAlert.x?alertId=24115
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4f.shtml

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