CVE-2020-3426 (CNNVD-202009-1436)
中文标题:
Cisco IOS 输入验证错误漏洞
英文标题:
Cisco IOS Software for Cisco Industrial Routers Virtual-LPWA Unauthorized Access Vulnerability
漏洞描述
中文描述:
Cisco IOS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 Software Cisco 800系列工业集成多业务路由器（Industrial ISR）和Cisco 1000系列互联网格路由器（CGR1000）存在输入验证错误漏洞，该漏洞源于缺少用于虚拟LWP（VLPWA）协议调制解调器消息的输入和验证检查机制所致，该漏洞允许攻击者通过向受影响的设备提供精心制作的数据包来利用此漏洞。
英文描述:
A vulnerability in the implementation of the Low Power, Wide Area (LPWA) subsystem of Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data or cause a denial of service (DoS) condition. The vulnerability is due to a lack of input and validation checking mechanisms for virtual-LPWA (VLPWA) protocol modem messages. An attacker could exploit this vulnerability by supplying crafted packets to an affected device. A successful exploit could allow the attacker to gain unauthorized read access to sensitive data or cause the VLPWA interface of the affected device to shut down, resulting in 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 15.2(6)E4 | n/a | - | - |
cpe:2.3:a:cisco:cisco_ios_15.2(6)e4:n_a:*:*:*:*:*:*:*
|
| cisco | ios | - | - | - |
cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:*
|
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:U/C:H/I:N/A:N
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-2020-3426 |
2025-11-11 15:20:37 | 2025-11-11 07:36:19 |
| NVD | nvd_CVE-2020-3426 |
2025-11-11 14:57:03 | 2025-11-11 07:44:43 |
| CNNVD | cnnvd_CNNVD-202009-1436 |
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 -> 输入验证错误
- cnnvd_id: 未提取 -> CNNVD-202009-1436
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']