NX-OS vulnerabilitiesAnd the versions its exploited flaws hit.
NX-OS is made by Cisco. We track 275 published vulnerabilities listed under that exact name, across 1,098 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 2 July 2024. Cisco lists newer releases under their own names, such as NX-OS for Nexus 5500 Platform Switches, so check those pages too.
The most recent NX-OS flaw added to the known-exploited list is CVE-2024-20399, on 2 July 2024. We keep watching the known-exploited list.
Is NX-OS listed under other names? Yes.
Cisco also lists NX-OS under more specific names, such as NX-OS for Nexus 5500 Platform Switches and NX-OS for Nexus 5600 Platform Switches. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which versions of NX-OS do the exploited flaws hit?
Each exploited flaw lists the versions it affects, usually as ranges. "before 10.2(7)" means every version up to, but not including, 10.2(7). Find your version, then patch.
- CVE-2024-20399Exploited list, 2 Jul 2024
Cisco NX-OS Command Injection Vulnerability
6.0(2)a6(1a)6.0(2)a6(1)6.0(2)a6(2a)6.0(2)a6(2)6.0(2)a6(3a)6.0(2)a6(3)6.0(2)a6(4a)6.0(2)a6(4) - CVE-2023-44487Exploited list, 10 Oct 2023
HTTP/2 Rapid Reset Attack Vulnerability
before 10.2(7)10.3(1) to before 10.3(5)10.4(1) to before 10.4(2)
Which NX-OS vulnerabilities are being exploited?
2 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 6.0Cisco NX-OS Command Injection Vulnerability
Cisco NX-OS contains a command injection vulnerability in the command line interface (CLI) that could allow an authenticated, local attacker to execute commands as root on the underlying operating system of an...
- 7.5HTTP/2 Rapid Reset Attack Vulnerability
HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).
Which NX-OS flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
- 29%CVE-2020-10136Medium
IP-in-IP protocol specifies IP Encapsulation within IP standard (RFC 2003, STD 1) that decapsulate and route IP-in-IP traffic is vulnerable to spoofing, access-control bypass and other unexpected behavior due to the...
- 17%CVE-2018-0301Critical
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to craft a packet to the management interface on an affected system, causing a buffer overflow.
- 15%CVE-2022-20650High
A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an authenticated, remote attacker to execute arbitrary commands with root privileges.
- 14%CVE-2019-1599High
A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device.
- 12%CVE-2022-20624High
A vulnerability in the Cisco Fabric Services over IP (CFSoIP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
- 12%CVE-2022-20623High
A vulnerability in the rate limiter for Bidirectional Forwarding Detection (BFD) traffic of Cisco NX-OS Software for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause BFD...
- 8.1%CVE-2016-1453Critical
Buffer overflow in the Overlay Transport Virtualization (OTV) GRE feature in Cisco NX-OS 5.0 through 7.3 on Nexus 7000 and 7700 devices allows remote attackers to execute arbitrary code via long parameters in a...
- 4.8%CVE-2020-3119High
A vulnerability in the Cisco Discovery Protocol implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device.
- 4.8%CVE-2018-0293High
A vulnerability in role-based access control (RBAC) for Cisco NX-OS Software could allow an authenticated, remote attacker to execute CLI commands that should be restricted for a nonadministrative user.
Running NX-OS? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 flaw being exploited affects software Acme tracks
Cisco NX-OS contains a command injection vulnerability in the command line interface (CLI) that could allow an authenticated, local attacker to execute commands as root on the underlying operating system of an affected device.
- Matched to
- NX-OS on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 275 published vulnerabilities listed under the name NX-OS, across 1,098 versions. The most recent NX-OS flaw added to the known-exploited list is CVE-2024-20399, on 2 July 2024.
2 are on the list of flaws known to be exploited. The most recently added are CVE-2024-20399 and CVE-2023-44487.
Cisco also lists NX-OS under more specific names, such as NX-OS for Nexus 5500 Platform Switches and NX-OS for Nexus 5600 Platform Switches. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Each flaw names its own versions, usually as ranges. The newest, CVE-2024-20399, affects 6.0(2)a6(1a), 6.0(2)a6(1), 6.0(2)a6(2a), 6.0(2)a6(2) and more. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track NX-OS. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.