Security readout for executives and security teams
This Cisco IOS and IOS XE issue can let a remote attacker crash and reload an affected device by sending a crafted SIP message. The main business impact is service interruption, especially where affected network devices process SIP traffic. Public sources provided do not give CVSS, CWE, or active exploitation evidence. Exposure is most plausible on Cisco IOS or IOS XE devices in the named version ranges that receive or inspect SIP traffic. The provided affected-product metadata is incomplete, so teams should verify exact device models, software trains, and SIP configuration against Cisco guidance. Handle as a business continuity risk for affected Cisco infrastructure, especially voice or SIP-facing environments. Prioritize confirmation and vendor-guided remediation over emergency response unless internal evidence shows reloads or SIP exposure on critical paths. Mitigation focus: Review the Cisco advisory for fixed software or official workarounds.; Prioritize devices that process SIP traffic or sit on voice service paths.; Restrict SIP exposure to trusted networks where operationally possible..
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-2011-0939 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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