Security readout for executives and security teams
This flaw affects Cisco ASA 5580 appliances running software earlier than 8.1(2). A remote attacker could send malformed NAT-T traffic that causes the IKE process to hang, disrupting VPN or security gateway services. The available sources describe denial of service only, not data theft or device takeover. Exposure is limited to Cisco ASA 5580 series devices running ASA software before 8.1(2). Risk is higher where IKE/NAT-T services are reachable from untrusted networks, such as internet-facing VPN gateways. Treat this as a service availability risk for legacy Cisco VPN or firewall infrastructure. It is not described as a data compromise issue, but disruption to remote access or perimeter services can have business impact. Mitigation focus: Inventory Cisco ASA 5580 appliances and record ASA software versions.; Upgrade affected devices to ASA 8.1(2) or later per Cisco guidance.; Review Cisco release notes for Bug ID CSCsr74439 and operational caveats..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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CVE-2009-4918 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
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Source materials
- CVE List V5 sourceCVE List V5
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CWE details
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