CVE-2013-5469

Severity: high (CVSS 7.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-08-30 · updated 2026-06-16
Weakness: CWE-119

Description

The TCP implementation in Cisco IOS does not properly implement the transitions from the ESTABLISHED state to the CLOSED state, which allows remote attackers to cause a denial of service (flood of ACK packets) via a crafted series of ACK and FIN packets, aka Bug ID CSCtz14399.

Affected products

Cisco IOS: all versions

References

http://osvdb.org/96764
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5469
http://www.securityfocus.com/bid/62083
http://www.securitytracker.com/id/1028969
https://exchange.xforce.ibmcloud.com/vulnerabilities/86794
http://osvdb.org/96764
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5469
http://www.securityfocus.com/bid/62083
http://www.securitytracker.com/id/1028969
https://exchange.xforce.ibmcloud.com/vulnerabilities/86794

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