CVE-2021-1367
Cisco NX-OS Software Protocol Independent Multicast Denial of Service Vulnerability
Severity Score
4.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A vulnerability in the Protocol Independent Multicast (PIM) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted PIM packet to an affected device. A successful exploit could allow the attacker to cause a traffic loop, resulting in a DoS condition.
Una vulnerabilidad en la funcionalidad Protocol Independent Multicast (PIM) del software Cisco NX-OS, podría permitir a un atacante adyacente no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a una comprobación de entrada insuficiente. Un atacante podría explotar esta vulnerabilidad mediante el envío de un paquete PIM diseñado a un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar un bucle de tráfico, lo que resultaría en una condición DoS
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-11-13 CVE Reserved
- 2021-02-24 CVE Published
- 2023-11-10 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9000v Switch Search vendor "Cisco" for product "Nexus 9000v Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 92160yc-x Switch Search vendor "Cisco" for product "Nexus 92160yc-x Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 92300yc Switch Search vendor "Cisco" for product "Nexus 92300yc Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 92304qc Switch Search vendor "Cisco" for product "Nexus 92304qc Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 92348gc-x Switch Search vendor "Cisco" for product "Nexus 92348gc-x Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9236c Switch Search vendor "Cisco" for product "Nexus 9236c Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9272q Switch Search vendor "Cisco" for product "Nexus 9272q Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93108tc-ex-24 Switch Search vendor "Cisco" for product "Nexus 93108tc-ex-24 Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93108tc-ex Switch Search vendor "Cisco" for product "Nexus 93108tc-ex Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93108tc-fx-24 Search vendor "Cisco" for product "Nexus 93108tc-fx-24" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93108tc-fx Switch Search vendor "Cisco" for product "Nexus 93108tc-fx Switch" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93120tx Search vendor "Cisco" for product "Nexus 93120tx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93128tx Search vendor "Cisco" for product "Nexus 93128tx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9316d-gx Search vendor "Cisco" for product "Nexus 9316d-gx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180lc-ex Search vendor "Cisco" for product "Nexus 93180lc-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-ex Search vendor "Cisco" for product "Nexus 93180yc-ex" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-ex-24 Search vendor "Cisco" for product "Nexus 93180yc-ex-24" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-fx Search vendor "Cisco" for product "Nexus 93180yc-fx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-fx-24 Search vendor "Cisco" for product "Nexus 93180yc-fx-24" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-fx3 Search vendor "Cisco" for product "Nexus 93180yc-fx3" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93180yc-fx3s Search vendor "Cisco" for product "Nexus 93180yc-fx3s" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93216tc-fx2 Search vendor "Cisco" for product "Nexus 93216tc-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93240yc-fx2 Search vendor "Cisco" for product "Nexus 93240yc-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9332c Search vendor "Cisco" for product "Nexus 9332c" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9332pq Search vendor "Cisco" for product "Nexus 9332pq" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93360yc-fx2 Search vendor "Cisco" for product "Nexus 93360yc-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9336c-fx2 Search vendor "Cisco" for product "Nexus 9336c-fx2" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9336c-fx2-e Search vendor "Cisco" for product "Nexus 9336c-fx2-e" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9336pq Search vendor "Cisco" for product "Nexus 9336pq" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9348gc-fxp Search vendor "Cisco" for product "Nexus 9348gc-fxp" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 93600cd-gx Search vendor "Cisco" for product "Nexus 93600cd-gx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9364c Search vendor "Cisco" for product "Nexus 9364c" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9364c-gx Search vendor "Cisco" for product "Nexus 9364c-gx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9372px Search vendor "Cisco" for product "Nexus 9372px" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9372px-e Search vendor "Cisco" for product "Nexus 9372px-e" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9372tx Search vendor "Cisco" for product "Nexus 9372tx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9372tx-e Search vendor "Cisco" for product "Nexus 9372tx-e" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9396px Search vendor "Cisco" for product "Nexus 9396px" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9396tx Search vendor "Cisco" for product "Nexus 9396tx" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9504 Search vendor "Cisco" for product "Nexus 9504" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9508 Search vendor "Cisco" for product "Nexus 9508" | - | - |
Safe
|
| Cisco Search vendor "Cisco" | Nx-os Search vendor "Cisco" for product "Nx-os" | 9.3\(5\) Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)" | - |
Affected
| in | Cisco Search vendor "Cisco" | Nexus 9516 Search vendor "Cisco" for product "Nexus 9516" | - | - |
Safe
|