CVE-2020-3509 (CNNVD-202009-1441)
中文标题:
Cisco IOS XE Software和Cisco cBR-8 Converged Broadband Routers DHCP message handler 代码问题漏洞
英文标题:
Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers DHCP Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco IOS和IOS XE都是美国思科(Cisco)公司的一套为其网络设备开发的操作系统。 Cisco IOS XE Software Cisco cBR-8 Converged Broadband Routers 的 DHCP message handler 中存在安全漏洞,该漏洞源于在解析DHCP版本4(DHCPv4)消息时没有足够的错误处理引起的,该漏洞允许攻击者可以通过将恶意的DHCPv4消息发送到受影响的设备或通过它的WAN接口发送恶意DHCPv4消息来利用此漏洞。
英文描述:
A vulnerability in the DHCP message handler of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the supervisor to crash, which could result in a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when DHCP version 4 (DHCPv4) messages are parsed. An attacker could exploit this vulnerability by sending a malicious DHCPv4 message to or through a WAN interface of an affected device. A successful exploit could allow the attacker to cause a reload of the affected device. Note: On Cisco cBR-8 Converged Broadband Routers, all of the following are considered WAN interfaces: 10 Gbps Ethernet interfaces 100 Gbps Ethernet interfaces Port channel interfaces that include multiple 10 and/or 100 Gbps Ethernet interfaces
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 | 16.7\(1\) | - | - |
cpe:2.3:o:cisco:ios_xe:16.7\(1\):*:*:*:*:*:*:*
|
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
3.0 (cna)
HIGHCVSS:3.0/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-2020-3509 |
2025-11-11 15:20:37 | 2025-11-11 07:36:19 |
| NVD | nvd_CVE-2020-3509 |
2025-11-11 14:57:03 | 2025-11-11 07:44:43 |
| CNNVD | cnnvd_CNNVD-202009-1441 |
2025-11-11 15:10:30 | 2025-11-11 07:56:26 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 代码问题
- cnnvd_id: 未提取 -> CNNVD-202009-1441
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']