Security readout for executives and security teams
This older Cisco IOS issue affects IKEv2 IPsec tunnels when AES-GCM or AES-GMAC is used. The flaw can let remote attackers bypass certain anti-replay protections, weakening safeguards that normally reject repeated tunnel traffic. The provided sources do not include severity, affected releases, or a confirmed fix. Likely limited to Cisco IOS devices terminating IKEv2 IPsec tunnels that use AES-GCM or AES-GMAC. Exposure cannot be narrowed further from the provided sources because affected versions and product matrices are absent. Treat this as a targeted VPN infrastructure review, not a broad emergency. Prioritize internet-facing or partner-facing Cisco IOS IPsec gateways using IKEv2 with AES-GCM or AES-GMAC, then follow Cisco guidance. Mitigation focus: Review Cisco advisory CVE-2013-5548 and Bug ID CSCuj47795 for official remediation.; Inventory Cisco IOS IKEv2 IPsec tunnels using AES-GCM or AES-GMAC.; Map identified devices to exact Cisco IOS versions and support status..
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-2013-5548 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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