Security readout for executives and security teams
This older Cisco IOS issue can let a remote sender influence routing behavior when IP routing is disabled. The stated impact is denial of service through network routing modification. Business urgency depends on whether legacy IOS 12.0 through 12.2 devices still exist in this non-default configuration. Exposure is most likely limited to legacy Cisco IOS 12.0 through 12.2 systems where IP routing is disabled. The bundle does not identify affected CPEs or current supported product mappings, so asset inventory is required. Treat as a legacy infrastructure exposure check, not an emergency based on the provided evidence. Prioritize if the organization still runs old Cisco IOS with IP routing disabled in critical network paths. Mitigation focus: Inventory Cisco IOS 12.0 through 12.2 devices still operating in production.; Identify devices with IP routing disabled or equivalent non-default routing behavior.; Review the Cisco field notice and current Cisco guidance for corrective actions..
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-2003-1398 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
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
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-ios-icmp-redirect(11306)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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