CVE-2017-12328

Name: CVE-2017-12328
Creator: NVD / NIST
Published: 2017-11-30T09:29:00.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.13%

Last modified Jun 17, 2026

CVE-2017-12328 is a vulnerability of currently unknown severity. A vulnerability in Session Initiation Protocol (SIP) call handling in Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition because the SIP process unexpectedly restarts. All active phone calls are dropped as the SIP process restarts. EPSS estimates a 2.13% chance of exploitation in the next 30 days.

Description

A vulnerability in Session Initiation Protocol (SIP) call handling in Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition because the SIP process unexpectedly restarts. All active phone calls are dropped as the SIP process restarts. The vulnerability is due to incomplete input validation of the SIP packet header. An attacker could exploit this vulnerability by sending a malformed SIP packet to a targeted phone. An exploit could allow the attacker to cause a DoS condition because all phone calls are dropped when the SIP process unexpectedly restarts. Cisco Bug IDs: CSCvc62590.

Metrics

EPSS Probability

2.13%

79.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Ip Phone 8800 Series Firmware	11.0\(0.1\)

References

http://www.securityfocus.com/bid/102003Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039922Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ippVendor Advisory
http://www.securityfocus.com/bid/102003Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039922Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ippVendor Advisory

Timeline

Published: Nov 30, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12328?

How severe is CVE-2017-12328?

Severity scoring for CVE-2017-12328 is pending analysis. The EPSS model estimates a 2.13% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12328?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12328?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST