CVE-2011-3296

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-06 · updated 2026-06-16
Weakness: CWE-399

Description

Cisco Firewall Services Module (aka FWSM) 3.1 before 3.1(21), 3.2 before 3.2(22), 4.0 before 4.0(16), and 4.1 before 4.1(7), when IPv6 is used, allows remote attackers to cause a denial of service (memory corruption and module crash or hang) via vectors that trigger syslog message 302015, aka Bug ID CSCti83875.

Affected products

Cisco Catalyst 6500: all versions
Cisco Catalyst 7600: all versions
Cisco Firewall Services Module Software: 3.1, 3.1(2), 3.1(3), 3.1(4), 3.1(5), 3.1(6) (+58)

References

http://www.cisco.com/warp/public/707/cisco-sa-20111005-fwsm.shtml
https://exchange.xforce.ibmcloud.com/vulnerabilities/70326
http://www.cisco.com/warp/public/707/cisco-sa-20111005-fwsm.shtml
https://exchange.xforce.ibmcloud.com/vulnerabilities/70326

Get alerted when CVE-2011-3296 or the next vulnerability affects your stack