CVE-2018-0332
mediumpriority · track · 31EPSS 0.034 · 89 %ileEUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco IP Phone 7800 Series cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco IP Phone 8800 Series Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified IP Phone 6900 Series cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified IP Phone 7900 Seriescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified IP Phones 9900 Series Firmware cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (9)
Products and version ranges known to be affected.
- cisco unified ip phone firmware= 9.9(9.99002.1)nvdUScpe:2.3:o:cisco:unified_ip_phone_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-20180606-ip-phone-dosCisco Unified IP Phone Software Denial of Service Vulnerability2018-06-06csaf · cisco_csafUS
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. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-ip-phone-dos ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-ip-phone-dos"]
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- http://www.securitytracker.com/id/1041074cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-ip-phone-doscnnvd
- https://www.securityfocus.com/bid/104445cnnvd
- http://www.securityfocus.com/bid/104445enisa_euvd
- http://www.securitytracker.com/id/1041074enisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-ip-phone-dosenisa_euvd
- http://www.securityfocus.com/bid/104445Third Party AdvisoryVDB Entrynvd
- http://www.securitytracker.com/id/1041074Third Party AdvisoryVDB Entrynvd
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