Vulnerability details

CVE-2026-76457

Cisco NX-OS SoftwareCisco NX-OS System Software in ACI ModeCisco Unified Computing System

Cisco NX-OS Software Security Hardening Release: October 2026 - Out-of-bounds Read Vulnerabilities

CVSS 3.1
8.6High

Official description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76457 are related to out-of-bounds read issues that are grouped under the Common Weakness Enumeration (CWE) CWE-125.

CVSS scores

ScoreVersionSourceVector
8.6High 3.1 CVEProject cvelistV5 (CNA) (cisco) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected products

200 of 312
VendorProductVersionsSource
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(1j) 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(3o) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 10.6(3q) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 10.6(3s) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(0)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(0)DX(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(0)DY(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(1)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(1)DY(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(2)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(2)D1(1d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(2)D1(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(2)D1(3) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(2)D1(3a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(3)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(4)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(5)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(6)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(7)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(8)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 7.3(9)D1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.1(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.1(1a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.1(1b) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.1(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.1(2a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(10) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(11) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(3) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(4) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(5) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(6) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(7) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(7a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(8) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.2(9) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.3(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.3(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(10) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(11) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(12) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(13) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(1a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2b) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2c) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(2f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(3) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(4) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(4a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(5) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(6) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(6a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(7) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(8) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.4(9) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 8.5(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(1a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(2t) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(2v) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(3) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(3y) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.2(4) 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(2a) 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)
Cisco Cisco NX-OS Software 9.4(1) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(1a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(2) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(2a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(3) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(3a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(3b) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(4) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS Software 9.4(5) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(1g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(2e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(2f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(2g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(2h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(3e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(3f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(3g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(4d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(4e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(4f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(5c) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(5d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(5e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(6e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(6g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(6h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(7f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(7g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(8d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(8e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(8f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(8g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(8h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.2(8i) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(1d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(2a) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(2b) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(2c) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(2d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(2e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 15.3(2f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(1g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(1j) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(2h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(2j) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(3d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(3e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(3g) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(4c) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(5h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(5j) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(6c) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(6h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(7e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(8e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(8f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(8h) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(9c) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(9d) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(9e) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.0(9f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.1(1f) CVEProject cvelistV5 (CNA)
Cisco Cisco NX-OS System Software in ACI Mode 16.1(2f) CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-10-07
Last updated
2026-11-07
State
Published
Assigner (CNA)
cisco

Exploit prediction (EPSS)

0.29%
Probability of exploitation in 30 days
22.2%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Partial

Weaknesses (CWE)

  • CWE-125
    Out-of-bounds Read