CVE-2026-20173
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Cisco NX-OS Software Denial of Service Vulnerability
A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service (DoS) condition. This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by sending a high rate of UDP or TCP connections to a data plane interface on an affected device. A successful exploit could allow the attacker to cause instability to various routing and control plane protocols through some packet loss and temporary disruptions, causing a DoS condition. This DoS condition will clear without manual intervention soon after the high rate of traffic is stopped.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Cisco NX-OS Software
- Vendor
- Cisco
- Product
- Cisco NX-OS Software
- Platforms
- Unknown
- Default status
unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.2(5) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(5)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(2v) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(4)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(2t) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(3y) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.3(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(2)D1(3a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(3)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(0)DX(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(2)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(2)D1(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(1z) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.2(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1(2a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(2)D1(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.3(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(1)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(0)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(2)D1(1d) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(6)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(6) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(5) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(6) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(7)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(5w) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(7) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(7) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(7k) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(8)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(7a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(7a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(8) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(4a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(5) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(8) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(9) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3(9)D1(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(6) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(10) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(9) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(7) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(6a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(11) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(10) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(12) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(8) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(99w) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3w) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(99x) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3o) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(9) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3p) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(4a) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3q) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(13) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2(11) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(5) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3x) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(4g) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(1) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(10) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(3r) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(6) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(14) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(4h) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(2) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(11) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(7) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(5) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(3) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(15) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(4g) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(4) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4(12) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(3t) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.3(8) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(6) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(3s) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(3e) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(3o) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(16) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(3p) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.4(7) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 10.5(5) | affected | Unavailable | Unavailable | Unavailable | None listed |
| 9.3(17) | affected | Unavailable | Unavailable | Unavailable | None listed |