Security readout for executives and security teams
This is an old denial-of-service issue affecting legacy Linux and FreeBSD systems used for NAT. A remote attacker could trigger a kernel panic, taking the forwarding machine offline. The main business risk is outage of obsolete gateway or firewall infrastructure, not data theft. Exposure is likely limited to very old internet-facing or internal forwarding hosts still running Linux 2.2-era ipchains NAT or FreeBSD 3.2 ipfw. Modern Linux nftables/iptables systems and supported FreeBSD releases are not identified as affected in the provided sources. Treat this as a legacy-infrastructure resilience issue. It should not drive emergency response unless affected gateway systems still exist, but any confirmed exposure deserves prompt retirement because the vulnerable platforms are obsolete and outage-prone. Mitigation focus: Inventory and retire Linux 2.2.10-or-earlier NAT hosts using ipchains.; Inventory and retire FreeBSD 3.2 NAT or forwarding hosts using ipfw.; For Linux, review the 2.2.11 patch reference or later supported kernel guidance..
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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CVE-1999-1339 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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