Security readout for executives and security teams
This issue affects older Cisco Unified Communications Manager deployments. Malformed traffic to unused UDP ports can drive CPU consumption and disrupt the management GUI and voice service. The main business risk is interruption of phone communications, especially where CUCM supports critical operations. Exposure is most likely in organizations still running the listed legacy CUCM or BE3k versions. Risk increases if untrusted networks can reach UDP services on the CUCM host, including unused UDP ports. Prioritize remediation where CUCM supports business-critical voice, contact center, emergency, or operations workflows. For isolated legacy systems, treat this as scheduled but necessary risk reduction. Mitigation focus: Upgrade affected CUCM versions to the fixed Cisco releases or later.; Review Cisco’s advisory for exact upgrade paths and operational guidance.; Restrict untrusted UDP reachability to CUCM systems where business requirements allow..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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CVE-2013-1133 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
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CWE details
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