Security readout for executives and security teams
This flaw can let a remote attacker crash or hang vulnerable Cisco IOS devices by sending fragmented IPv6 traffic. The business impact is network availability loss, not data theft. The provided bundle does not include CVSS scoring, active exploitation evidence, or detailed remediation text. Exposure is most likely on Cisco IOS routers or switches running the listed IOS trains where IPv6 fragmentation reassembly behavior is reachable from untrusted networks. The bundle does not specify exact platforms, configurations, or whether IPv6 VFR must be explicitly enabled. Treat this as an availability risk for legacy Cisco IOS infrastructure. Prioritize internet-facing or critical routing paths first. Urgency is moderate unless exposed critical devices still run affected versions or show unexplained instability. Mitigation focus: Inventory Cisco IOS devices and flag releases 12.2-12.4 and 15.0-15.3.; Review Cisco advisory cisco-sa-20130925-ipv6vfr for fixed software and approved workarounds.; Prioritize edge and transit devices handling untrusted IPv6 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
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ATT&CK lookup starting points
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CVE-2013-5474 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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