Security readout for executives and security teams
CVE-2015-0776 is a denial-of-service issue in Cisco IOS XR telnetd on Network Convergence System 6000 devices running version 5.0.1. A malformed Telnet packet can trigger a device reload, potentially disrupting network availability. The provided sources do not include CVSS scoring, patch details, or proof of active exploitation. Exposure is most likely where Cisco NCS 6000 devices run IOS XR 5.0.1 with Telnet service enabled and reachable from untrusted or broad management networks. Treat this as availability risk for affected network infrastructure. Prioritize validation on internet-facing or widely reachable management planes, then follow Cisco guidance. Urgency increases if Telnet is exposed beyond a tightly controlled management network. Mitigation focus: Review Cisco advisory guidance for Bug ID CSCuq31566.; Identify any NCS 6000 devices running IOS XR 5.0.1.; Disable Telnet where feasible and use more secure management access..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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CVE-2015-0776 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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