CVE-2022-20623 (CNNVD-202202-1794)
中文标题:
Cisco NX-OS Software 安全漏洞
英文标题:
Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software for Cisco Nexus 9000 Series Switches存在安全漏洞，该漏洞源于BFD速率限制器功能中的逻辑错误。攻击者可利用该漏洞通过发送精心编制的流量流来导致拒绝服务（DoS）。
英文描述:
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 traffic to be dropped on an affected device. This vulnerability is due to a logic error in the BFD rate limiter functionality. An attacker could exploit this vulnerability by sending a crafted stream of traffic through the device. A successful exploit could allow the attacker to cause BFD traffic to be dropped, resulting in BFD session flaps. BFD session flaps can cause route instability and dropped traffic, resulting in a denial of service (DoS) condition. This vulnerability applies to both IPv4 and IPv6 traffic.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Cisco | Cisco NX-OS Software | n/a | - | - |
cpe:2.3:a:cisco:cisco_nx-os_software:n_a:*:*:*:*:*:*:*
|
| cisco | nx-os | * | - | - |
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
参考链接
cve.org
CVSS评分详情
3.1 (cna)
HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2022-20623 |
2025-11-11 15:21:15 | 2025-11-11 07:37:15 |
| NVD | nvd_CVE-2022-20623 |
2025-11-11 14:58:14 | 2025-11-11 07:45:31 |
| CNNVD | cnnvd_CNNVD-202202-1794 |
2025-11-11 15:10:50 | 2025-11-11 07:57:08 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 其他
- cnnvd_id: 未提取 -> CNNVD-202202-1794
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']