CVE-2010-4683

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-01-07 · updated 2026-06-16
Weakness: CWE-772

Description

Memory leak in Cisco IOS before 15.0(1)XA5 might allow remote attackers to cause a denial of service (memory consumption) by sending a crafted SIP REGISTER message over UDP, aka Bug ID CSCtg41733.

Affected products

Cisco IOS: before 15.0\(1\)xa5 — fixed in 15.0\(1\)xa5

How to fix

Upgrade to a fixed version: Cisco IOS 15.0\(1\)xa5. Check the vendor advisory for mitigations.

References

http://www.cisco.com/en/US/docs/ios/15_0/15_0x/15_01_XA/rn800xa.pdf
http://www.securityfocus.com/bid/45786
https://exchange.xforce.ibmcloud.com/vulnerabilities/64588
http://www.cisco.com/en/US/docs/ios/15_0/15_0x/15_01_XA/rn800xa.pdf
http://www.securityfocus.com/bid/45786
https://exchange.xforce.ibmcloud.com/vulnerabilities/64588

Get alerted when CVE-2010-4683 or the next vulnerability affects your stack