CVE-2020-3118 (CNNVD-202002-131)
中文标题:
Cisco IOS XR 缓冲区错误漏洞
英文标题:
Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability
漏洞描述
中文描述:
Cisco IOS XR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 XR中的Cisco Discovery Protocol实现存在缓冲区错误漏洞，该漏洞源于程序没有正确验证输入的字符串。攻击者可通过发送恶意的Cisco Discovery Protocol数据包利用该漏洞以管理权限执行任意代码。
英文描述:
A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability is due to improper validation of string input from certain fields in Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
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 XR Software | - | < 6.6.3 | - |
cpe:2.3:a:cisco:cisco_ios_xr_software:*:*:*:*:*:*:*:*
|
| cisco | ios_xr | * | - | - |
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
|
| cisco | ios_xr | 6.5.3 | - | - |
cpe:2.3:o:cisco:ios_xr:6.5.3:*:*:*:*:*:*:*
|
| cisco | ios_xr | 5.2.5 | - | - |
cpe:2.3:o:cisco:ios_xr:5.2.5:*:*:*:*:*:*:*
|
| cisco | ios_xr | 6.4.2 | - | - |
cpe:2.3:o:cisco:ios_xr:6.4.2:*:*:*:*:*:*:*
|
| cisco | ios_xr | 6.6.25 | - | - |
cpe:2.3:o:cisco:ios_xr:6.6.25:*:*:*:*:*:*:*
|
| cisco | ios_xr | 7.0.1 | - | - |
cpe:2.3:o:cisco:ios_xr:7.0.1:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
3.0 (cna)
HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-2020-3118 |
2025-11-11 15:20:36 | 2025-11-11 07:36:18 |
| NVD | nvd_CVE-2020-3118 |
2025-11-11 14:56:55 | 2025-11-11 07:44:43 |
| CNNVD | cnnvd_CNNVD-202002-131 |
2025-11-11 15:10:21 | 2025-11-11 07:55:25 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 缓冲区错误
- cnnvd_id: 未提取 -> CNNVD-202002-131
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 7
- references_count: 2 -> 3
- data_sources: ['cve'] -> ['cve', 'nvd']