CVE-2026-20212 (GCVE-0-2026-20212)
Vulnerability from cvelistv5
Published
2026-09-02 16:13
Modified
2026-09-03 03:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1327 - Binding to an Unrestricted IP Address
Summary
A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges.
This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 (L3) virtual routing and forwarding (VRF). A successful exploit could allow the attacker to connect to an affected device and send crafted input that could be executed as code with root privileges. The exploitation of this vulnerability could also cause the S1HAL process to crash, which could cause the device to reload.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Version: 10.3(1) Version: 10.3(2) Version: 10.3(3) Version: 10.4(1) Version: 10.3(99w) Version: 10.3(3w) Version: 10.3(99x) Version: 10.3(3o) Version: 10.3(4) Version: 10.3(3p) Version: 10.3(4a) Version: 10.4(2) Version: 10.3(3q) Version: 10.3(5) Version: 10.4(3) Version: 10.3(3x) Version: 10.3(4g) Version: 10.5(1) Version: 10.3(3r) Version: 10.3(6) Version: 10.4(4) Version: 10.3(4h) Version: 10.5(2) Version: 10.3(7) Version: 10.4(5) Version: 10.5(3) Version: 10.4(4g) Version: 10.5(4) Version: 10.6(1) Version: 10.5(3t) Version: 10.3(8) Version: 10.4(6) Version: 10.5(3s) Version: 10.5(3e) Version: 10.5(3o) Version: 10.6(1s) Version: 10.6(2) Version: 10.5(3p) Version: 10.3(9) Version: 10.6(2s) Version: 10.6(3) Version: 10.4(7) Version: 10.5(5) Version: 10.6(2n) Version: 10.6(3s) |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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