CVE-2026-76471Cisco NX-OS Software NX-API Remote Code Execution Vulnerability
- 9.8CriticalCVSS base score
- 0.49%Exploitation in 30 daysEPSS · top 58% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By cisco
- 49 days later
· 49 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.49% · top 58% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected 9.2(3)
- affected 9.2(2v)
- affected 9.2(1)
- affected 9.2(2t)
- affected 9.2(3y)
- affected 9.3(2)
- affected 9.2(4)
- affected 9.3(1)
- affected 9.3(1z)
- affected 9.2(2)
- affected 9.3(3)
- affected 9.3(4)
- affected 9.3(5)
- affected 9.3(6)
- affected 9.3(5w)
- affected 9.3(7)
- affected 9.3(7k)
- affected 9.3(7a)
- affected 9.3(8)
- affected 9.3(9)
- affected 9.3(10)
- affected 10.3(1)
- affected 10.3(2)
- affected 9.3(11)
- affected 10.3(3)
- affected 9.3(12)
- affected 10.4(1)
- affected 10.3(99w)
- affected 10.3(3w)
- affected 10.3(99x)
- affected 10.3(3o)
- affected 10.3(4)
- affected 10.3(3p)
- affected 10.3(4a)
- affected 10.4(2)
- affected 10.3(3q)
- affected 9.3(13)
- affected 10.3(5)
- affected 10.4(3)
- affected 10.3(3x)
- and 33 more
Cisco · Cisco Unified Computing System (Managed)
- affected 4.0(1a)
- affected 4.1(1d)
- affected 4.0(4f)
- affected 4.0(4a)
- affected 4.0(4e)
- affected 4.0(4c)
- affected 4.0(4h)
- affected 4.1(1c)
- affected 4.0(2a)
- affected 4.1(1e)
- affected 4.1(2a)
- affected 4.0(2b)
- affected 4.0(1b)
- affected 4.0(4d)
- affected 4.0(2e)
- affected 4.1(1a)
- affected 4.0(4g)
- affected 4.0(1c)
- affected 4.0(1d)
- affected 4.0(4b)
- affected 4.0(4i)
- affected 4.0(2d)
- affected 4.1(1b)
- affected 4.1(2b)
- affected 4.0(4k)
- affected 4.1(3a)
- affected 4.1(3b)
- affected 4.1(2c)
- affected 4.0(4l)
- affected 4.1(4a)
- affected 4.1(3c)
- affected 4.1(3d)
- affected 4.2(1c)
- affected 4.2(1d)
- affected 4.0(4m)
- affected 4.1(3e)
- affected 4.2(1f)
- affected 4.1(3f)
- affected 4.2(1i)
- affected 4.1(3h)
- and 56 more
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-94461 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-76471)Record last updated .