Security readout for executives and security teams
This CVE describes a crash condition in Cisco IOS CallManager Express. An authenticated user with access to an extension mobility phone can trigger a denial of service while changing SNR numbers. The business impact is potential voice-service disruption, not data theft, based on the provided sources. Exposure is most likely in legacy Cisco IOS CME deployments running releases before 15.0(1)XA and using extension mobility or SNR features. The provided affected metadata is sparse, so confirm against Cisco release notes and installed IOS versions. Treat this as a legacy voice-infrastructure availability risk. It is not described as a breach-enabling flaw, but a crash of business phone services can still disrupt operations, especially in call-center, branch, or emergency-contact environments. Mitigation focus: Inventory Cisco IOS devices running CallManager Express.; Check installed IOS versions against 15.0(1)XA or later vendor guidance.; Review Cisco release notes for Bug ID CSCta63555 remediation details..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2009-5040 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
- ciscoios-callmanager-dos(64681)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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