What’s Vulnerable › Vulnerabilities

CVE-2018-0332

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-06-07 · updated 2026-06-17
• Weakness: CWE-399

Description

A vulnerability in the Session Initiation Protocol (SIP) ingress packet processing of Cisco Unified IP Phone software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a lack of flow-control mechanisms in the software. An attacker could exploit this vulnerability by sending high volumes of SIP INVITE traffic to the targeted device. Successful exploitation could allow the attacker to cause a disruption of services on the targeted IP phone. Cisco Bug IDs: CSCve10064, CSCve14617, CSCve14638, CSCve14683, CSCve20812, CSCve20926, CSCve20945.

Affected products

• Cisco IP Phone 6800, 7800, and 8800 Series unknown: 9.4(2)sr3.1, 9.4(2)sr4
• Cisco Unified Ip Phone Firmware: 9.9(9.99002.1)

References

• http://www.securityfocus.com/bid/104445
• http://www.securitytracker.com/id/1041074
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-ip-phone-dos
• http://www.securityfocus.com/bid/104445
• http://www.securitytracker.com/id/1041074
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-ip-phone-dos

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