CVE-2018-0325

Name: CVE-2018-0325
Creator: NVD / NIST
Published: 2018-05-17T03:29:00.81+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.38%

Last modified Jun 17, 2026

CVE-2018-0325 is a vulnerability of currently unknown severity. A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 7800 Series phones and Cisco IP Phone 8800 Series phones could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to incomplete input validation of SIP Session Description Protocol (SDP) parameters by the SDP parser of an affected phone. EPSS estimates a 3.38% chance of exploitation in the next 30 days.

Description

A vulnerability in the Session Initiation Protocol (SIP) call-handling functionality of Cisco IP Phone 7800 Series phones and Cisco IP Phone 8800 Series phones could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected phone. The vulnerability is due to incomplete input validation of SIP Session Description Protocol (SDP) parameters by the SDP parser of an affected phone. An attacker could exploit this vulnerability by sending a malformed SIP packet to an affected phone. A successful exploit could allow the attacker to cause all active phone calls on the affected phone to be dropped while the SIP process on the phone unexpectedly restarts, resulting in a DoS condition. Cisco Bug IDs: CSCvf40066.

Metrics

EPSS Probability

3.38%

87.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Ip Phone 8800 Firmware	9.4\(2\)sr4
Cisco	Ip Phone 8800 Firmware	10.3\(1\)sr4
Cisco	Ip Phone 7800 Firmware	< 12.1\(1.12\)
Cisco	Ip Phone 7800 Firmware	< 12.1\(1\)mn130

References

http://www.securityfocus.com/bid/104202Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040927Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ip-phone-dosVendor Advisory
http://www.securityfocus.com/bid/104202Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040927Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ip-phone-dosVendor Advisory

Timeline

Published: May 17, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0325?

How severe is CVE-2018-0325?

Severity scoring for CVE-2018-0325 is pending analysis. The EPSS model estimates a 3.38% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0325?

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-2018-0325?

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

Scan your code now

Source: NVD / NIST