Cisco NX-OS on Nexus 7000 series switches does not properly handle certain line-card…
Priority LOW 24CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
Cisco NX-OS on Nexus 7000 series switches does not properly handle certain line-card replacements, which might allow remote authenticated users to cause a denial of service (memory consumption) via a crafted configuration that references interfaces that do not exist on the new card, aka Bug ID CSCud44300.
Why it matters now
EPSS 0.00901 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_7000_10-slot:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_7000_18-slot:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_7000_9-slot:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Cisco |
- cpe:2.3:o:cisco:nx-os:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_7000_10-slot:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_7000_18-slot:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_7000_9-slot:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-6396
- 2026-10-03 Alias added: GHSA-8jxv-w855-pwmr
References
More Cisco Nexus 7000 vulnerabilities
- TI-2013-01026 Buffer overflow in the SNMP implementation in Cisco NX-OS on Nexus 7000 devices 4.x and… CVSS 2.0HIGH 9.0
- TI-2013-01025 Multiple buffer overflows in the (1) SNMP and (2) License Manager implementations in… CVSS 2.0HIGH 9.0
- TI-2013-01024 Multiple buffer overflows in the Cisco Discovery Protocol (CDP) implementation in Cisco… CVSS 2.0HIGH 8.3
- TI-2014-01744 The Message Transfer Service (MTS) in Cisco NX-OS before 6.2(7) on MDS 9000 devices and… CVSS 2.0HIGH 7.8
- TI-2012-02173 Cisco NX-OS 4.2, 5.0, 5.1, and 5.2 on Nexus 7000 series switches, when the High… CVSS 2.0HIGH 7.8
- TI-2009-00603 Unspecified vulnerability in Cisco NX-OS before 4.0(1a)N2(1), when running on Nexus 5000… CVSS 2.0HIGH 7.8
Sources
- CVE-2012-6396 · CVE Program
- CVE-2012-6396 · NVD
- FIRST EPSS
- GHSA-8jxv-w855-pwmr · GitHub Advisory Database · CC BY 4.0
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