CVE-2026-76471

criticalpriority · track · 39EPSS 0.005 · 42 %ileDENLUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.49% (42nd) EPSS
CVSS 9.8 · critical
Is it mine?
234 products
Check your exposure
Who says so?
3 sources
cert_bund · cisco_csaf · ncsc_nl

EPSS · scored 2026-10-27

A vulnerability in the NX-API feature of Cisco NX-OS Software 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.  The vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of 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 reload of the device and a DoS condition.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · psirt@cisco.com USexploitability 3.9 · impact 5.9
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Cisco PSIRT US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122US
05

affected products (234)

Products and version ranges known to be affected.

showing 20 of 234
06

advisories (3)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0406Kwetsbaarheden verholpen in Cisco NX-OS SoftwareNL2026-10-08csaf · ncsc_nlNL

    Cisco heeft meerdere kwetsbaarheden verholpen in Cisco NX-OS Software.

  • WID-SEC-W-2026-3810Cisco Nexus und Cisco NX-OS: Mehrere SchwachstellenDeutsch2026-10-07csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Cisco Nexus und Cisco NX-OS ausnutzen, um beliebigen Code auszuführen, erweiterte Berechtigungen zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen und zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

  • cisco-sa-napi-rce-r2shwu2jCisco NX-OS Software NX-API Remote Code Execution Vulnerability2026-10-07csaf · cisco_csafUS

    A vulnerability in the NX-API feature of Cisco NX-OS Software 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. The vulnerability is due to insufficient input validation of data that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API of 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 reload of the device and a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of a group of advisories. For a complete list of the advisories and links to them, see Cisco Advance Notification for Publication of October 7, 2026, Security Advisories ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-notice-fBn58ELx"]. For further documentation of improvements and fixes in Cisco NX-OS Software, see Cisco NX-OS Software Security Hardening Release: October 2026 ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"].

07

sources

Which sources assert this record, and when.

cert_bundcisco_csafncsc_nlNVDCVE.orgMITRE
published 2026-10-07modified 2026-10-08
08

references (1) nvd

External citations — patches, advisories, analysis.

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