Vulnerability details
CVE-2026-76465
Cisco NX-OS Software
Cisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability
CVSS 3.1
9.8Critical
Official description
A vulnerability in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software for Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper validation when an affected device is processing an MPLS echo-request packet. An attacker could exploit this vulnerability by sending a crafted MPLS echo-request to an IP address on an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause process crashes, which could result in a device reload and a DoS condition.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (cisco) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Cisco | Cisco NX-OS Software | 10.3(1) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(2) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3o) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3p) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3q) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3r) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3w) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(3x) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(4) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(4a) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(4g) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(4h) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(5) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(6) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(7) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(8) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(9) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(99w) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.3(99x) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(1) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(2) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(3) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(4) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(4g) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(5) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(6) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.4(7) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(1) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(2) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(3) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(3e) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(3o) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(3p) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(3s) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(3t) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(4) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.5(5) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(1) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(1s) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(2) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(2n) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(2s) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(3) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 10.6(3s) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(1) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(10) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(11) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(12) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(13) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(14) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(15) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(16) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(17) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(1z) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(2) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(3) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(4) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(5) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(5w) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(6) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(7) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(7a) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(7k) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(8) | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco NX-OS Software | 9.3(9) | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-10-07
- Last updated
- 2026-10-08
- State
- Published
- Assigner (CNA)
- cisco
Exploit prediction (EPSS)
0.46%
Probability of exploitation in 30 days
40%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-590Free of Memory not on the Heap