Security readout for executives and security teams
This flaw affects legacy Cisco 12000 routers running IOS 12.0 with Engine 2 line cards. Certain packet fragments may not be blocked by ACLs, allowing traffic that should be denied to pass. Business risk depends on whether these routers still protect important network boundaries. Likely exposure is limited to organizations still operating Cisco 12000 Series routers with IOS 12.0 and Engine 2-based line cards, especially where ACLs enforce perimeter or segmentation controls. The bundle does not identify other affected products. Prioritize if legacy Cisco 12000 routers still sit on sensitive network boundaries. If these assets are retired, risk is historical. The main business concern is silent weakening of ACL-based segmentation. Mitigation focus: Inventory Cisco 12000 routers, IOS 12.0 deployments, and Engine 2 line cards.; Review Cisco advisory GSR-ACL-pub.shtml for vendor-approved fixes or workarounds.; Prioritize upgrade or retirement of exposed legacy routers..
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-2001-0862 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
- cisco-acl-noninital-dos(7550)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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