Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2007-5639

7.1 · HIGH

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and other Nortel IP Phone, Mobile Voice Client, and WLAN Handsets products allow remote attackers to cause a denial of service (device hang) vi…

Published Oct 23, 2007nortelEPSS 1.79%

Overview

CVE-2007-5639 is a high-severity vulnerability affecting nortel ip_audio_conference_phone_2033. It was published on October 23, 2007 and has a CVSS 2.0 base score of 7.1 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and other Nortel IP Phone, Mobile Voice Client, and WLAN Handsets products allow remote attackers to cause a denial of service (device hang) via a flood of Mute and UnMute messages that have a spoofed source IP address for the Signaling Server.

Remediation

Check the references section for vendor advisories and patches from nortel. Update ip_audio_conference_phone_2033 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refsecurityreason.com/securityalert/3273Refsupport.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715Refwww.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txtRefwww.securityfocus.com/archive/1/482480/100/0/threadedRefwww.securityfocus.com/bid/26122Refexchange.xforce.ibmcloud.com/vulnerabilities/37253Refsecurityreason.com/securityalert/3273Refsupport.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715Refwww.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txtRefwww.securityfocus.com/archive/1/482480/100/0/threaded

How CyberStrike helps

Frequently asked questions

What is CVE-2007-5639?

CVE-2007-5639 is a high-severity vulnerability affecting nortel ip_audio_conference_phone_2033. It was published on October 23, 2007 and has a CVSS 2.0 base score of 7.1 (HIGH).

How severe is CVE-2007-5639?

This vulnerability has a CVSS 2.0 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2007-5639?

Check the references section for vendor advisories and patches from nortel. Update ip_audio_conference_phone_2033 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2007-5639?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-5639 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2007

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999