CVE-2011-0945

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: 2011-10-03 · updated 2026-06-16
Weakness: CWE-399

Description

Memory leak in the Data-link switching (aka DLSw) feature in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xS before 3.1.3S and 3.2.xS before 3.2.1S, when implemented over Fast Sequence Transport (FST), allows remote attackers to cause a denial of service (memory consumption and device reload or hang) via a crafted IP protocol 91 packet, aka Bug ID CSCth69364.

Affected products

Cisco IOS: 12.1, 12.1t, 12.1xi, 12.1xj, 12.1xl, 12.1xm (+185)
Cisco IOS XE: 3.1.0s, 3.1.1s, 3.1.2s, 3.2.0s

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=24116
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4e.shtml
http://tools.cisco.com/security/center/viewAlert.x?alertId=24116
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4e.shtml

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