Security readout for executives and security teams
This is an old Linux firewall bypass issue. Systems running Linux kernel 2.4.1 through 2.4.11 could fail to enforce Netfilter MAC-address filtering when small packets are received. The business risk is mainly for legacy systems that still rely on that specific firewall control. Exposure is likely limited to obsolete Linux 2.4.1-2.4.11 systems using iptables or Netfilter rules that filter by MAC address. Modern systems are unlikely to be affected unless they contain unsupported legacy kernels or embedded appliances based on those versions. Treat this as a legacy exposure review item, not an emergency unless affected systems are found on sensitive or externally reachable networks. Priority should rise if unsupported appliances still depend on MAC-based filtering for access control. Mitigation focus: Inventory Linux kernel versions on legacy servers and appliances.; Identify Netfilter or iptables rules that rely on MAC address matching.; Check vendor or distribution guidance for fixed kernels or supported upgrade paths..
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-2001-1572 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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