Security readout for executives and security teams
This vulnerability can let a remote attacker disrupt BGP on Cisco NX-OS by sending a malformed routing update. The reported impact is a BGP service reset and resynchronization, which can affect routing stability. The bundle does not provide affected versions, CVSS, active exploitation evidence, or a confirmed fix. Likely exposure is limited to Cisco NX-OS environments running BGP and accepting BGP UPDATE messages from peers. The provided affected-product metadata is incomplete, so version-level exposure must be confirmed against Cisco guidance. Treat as a routing availability risk for networks using Cisco NX-OS BGP. Prioritize validation on edge, core, and peering routers where BGP instability would affect customers, sites, or upstream connectivity. Mitigation focus: Review Cisco Security Notice CVE-2012-4099 for affected NX-OS releases and fixes.; Apply only Cisco-published fixed software or mitigations for Bug ID CSCtn13065.; Confirm BGP peering exposure and restrict peers according to approved network policy..
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-2012-4099 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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