CVE-2021-1624 (CNNVD-202109-1567)
中文标题:
Cisco IOS XE Software 安全漏洞
英文标题:
Cisco IOS XE Software Rate Limiting Network Address Translation Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco IOS XE Software是美国思科（Cisco）公司的一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。 Cisco IOS XE Software 中存在安全漏洞，该漏洞源于产品网络地址转换（NAT）的速率限制功能处理不当。攻击者可通过该漏洞导致设备的Cisco QuantumFlow处理器拒绝服务。
英文描述:
A vulnerability in the Rate Limiting Network Address Translation (NAT) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause high CPU utilization in the Cisco QuantumFlow Processor of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to mishandling of the rate limiting feature within the QuantumFlow Processor. An attacker could exploit this vulnerability by sending large amounts of traffic that would be subject to NAT and rate limiting through an affected device. A successful exploit could allow the attacker to cause the QuantumFlow Processor utilization to reach 100 percent on the affected device, resulting in a DoS condition.
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 IOS XE Software | n/a | - | - |
cpe:2.3:a:cisco:cisco_ios_xe_software:n_a:*:*:*:*:*:*:*
|
| cisco | ios_xe | * | - | - |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
|
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-2021-1624 |
2025-11-11 15:20:46 | 2025-11-11 07:36:34 |
| NVD | nvd_CVE-2021-1624 |
2025-11-11 14:57:42 | 2025-11-11 07:44:55 |
| CNNVD | cnnvd_CNNVD-202109-1567 |
2025-11-11 15:10:43 | 2025-11-11 07:56:54 |
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-202109-1567
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']