Security readout for executives and security teams
This vulnerability can make certain Cisco provider-edge routers reload if they receive a malformed SIP packet. The business impact is availability: affected network edge devices could unexpectedly restart, disrupting customer or internal connectivity. The bundle does not provide a CVSS score or evidence of active exploitation. Exposure is most likely in networks running the listed Cisco IOS or IOS XE versions with provider-edge MPLS NAT enabled and SIP/UDP 5060 reachable from untrusted sources. Treat as a network availability risk for legacy Cisco edge environments. Prioritize validation if MPLS NAT and SIP traffic are present, especially on customer-facing or carrier-edge infrastructure. Mitigation focus: Review Cisco advisory guidance for fixed software and operational workarounds.; Inventory Cisco IOS and IOS XE devices against the listed affected versions.; Prioritize provider-edge routers using MPLS NAT and handling SIP traffic..
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2011-3279 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
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
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
- oval:org.mitre.oval:def:13781CVE reference · vdb-entry, signature
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.