Security readout for executives and security teams
CVE-2015-0731 is a Cisco IOS denial-of-service issue in ISDN handling. A malformed Q.931 SETUP message can make an affected device reload, disrupting voice gateway availability. The bundle does not provide CVSS, fixed versions, or workaround details. Exposure is most likely on Cisco IOS 15.3S systems using ISDN voice gateway functionality, especially where Q.931 signaling can reach the device from external or less-trusted paths. Treat this as an availability risk for legacy Cisco voice infrastructure. It is not described as data theft or code execution, but a reload-prone gateway can disrupt business communications. Mitigation focus: Review Cisco advisory 38833 for affected releases and official fixed software guidance.; Inventory Cisco IOS 15.3S systems that use ISDN or voice gateway functions.; Prioritize vendor-recommended updates or workarounds for exposed voice gateway devices..
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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ATT&CK lookup starting points
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CVE-2015-0731 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
Products and packages named in the record
CWE details
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