Denial of service in Cisco Systems, Inc products - CVE-2017-12260
Published: October 19, 2017
Vulnerability identifier: #VU8892
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-12260
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition.
The weakness exists in the implementation of Session Initiation Protocol (SIP) functionality in Cisco Small Business SPA51x Series IP Phones due to improper handling of SIP request messages. A remote attacker can send formatted specifiers in a SIP payload and cause the device to become unresponsive.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists in the implementation of Session Initiation Protocol (SIP) functionality in Cisco Small Business SPA51x Series IP Phones due to improper handling of SIP request messages. A remote attacker can send formatted specifiers in a SIP payload and cause the device to become unresponsive.
Successful exploitation of the vulnerability results in denial of service.
Affected software
Small Business SPA51x
Small Business SPA52x
Small Business SPA50x
Small Business SPA52x
Small Business SPA50x
How to mitigate CVE-2017-12260
Update to version 7.6(2)SR2.