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CVE-2007-5537

7.8 · HIGH

Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(2), and Unified CallManager 5.0, allow remote attackers to cause a denial of service (kernel panic) via a flood of S…

Published Oct 18, 2007ciscoCWE-399EPSS 1.98%

Overview

CVE-2007-5537 is a high-severity vulnerability affecting cisco unified_callmanager. It was published on October 18, 2007 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(2), and Unified CallManager 5.0, allow remote attackers to cause a denial of service (kernel panic) via a flood of SIP INVITE messages to UDP port 5060, which triggers resource exhaustion, aka CSCsi75822.

Remediation

Check the references section for vendor advisories and patches from cisco. Update unified_callmanager 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
ciscounified_communications_manager0Affected

References

Refosvdb.org/37941Refsecunia.com/advisories/27296Refwww.cisco.com/en/US/products/products_security_advisory09186a00808dda34.shtmlRefwww.securityfocus.com/bid/26105Refwww.securitytracker.com/id?1018828Refwww.vupen.com/english/advisories/2007/3532Refexchange.xforce.ibmcloud.com/vulnerabilities/37246Refosvdb.org/37941Refsecunia.com/advisories/27296Refwww.cisco.com/en/US/products/products_security_advisory09186a00808dda34.shtml

How CyberStrike helps

Frequently asked questions

What is CVE-2007-5537?

CVE-2007-5537 is a high-severity vulnerability affecting cisco unified_callmanager. It was published on October 18, 2007 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2007-5537?

This vulnerability has a CVSS 2.0 base score of 7.8, 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-2007-5537?

Check the references section for vendor advisories and patches from cisco. Update unified_callmanager 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-2007-5537?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2007-5537 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.

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