CVE-2007-5639

Public Exploit

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.

7.1

CVSS

Severity: High

CVSS 2.0 •

EPSS 1.05% Top 25%

Third-Party Advisory securityreason.com

Affected: n/a n/a

References

Link	Tags
http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_flooding_denial_of_service_v1.0.txt	exploit
http://securityreason.com/securityalert/3273	third party advisory
http://www.securityfocus.com/archive/1/482480/100/0/threaded	mailing list
http://www.securityfocus.com/bid/26122	vdb entry patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/37253	vdb entry
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654715	patch

Frequently Asked Questions

What is the severity of CVE-2007-5639?: CVE-2007-5639 has been scored as a high severity vulnerability.
How to fix CVE-2007-5639?: To fix CVE-2007-5639, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2007-5639 being actively exploited in the wild?: It is possible that CVE-2007-5639 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.