CVE-2020-27121 (CNNVD-202011-313)
中文标题:
Cisco Unified Communications Manager 安全漏洞
英文标题:
Cisco Unified Communications Manager IM and Presence Service Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。 Cisco Unified Communications Manager IM 和 Presence Service的XCP 存在安全漏洞，该漏洞可触发致命错误，以导致拒绝服务。
英文描述:
A vulnerability in Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) Software could allow an authenticated, remote attacker to cause the Cisco XCP Authentication Service on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of login requests. An attacker could exploit this vulnerability by sending a crafted client login request to an affected device. A successful exploit could allow the attacker to cause a process to crash, resulting in a DoS condition for new login attempts. Users who are authenticated at the time of the attack would not be affected. There are workarounds that address this vulnerability.
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 Unified Communications Manager IM and Presence Service | n/a | - | - |
cpe:2.3:a:cisco:cisco_unified_communications_manager_im_and_presence_service:n_a:*:*:*:*:*:*:*
|
| cisco | unified_communications_manager_im_and_presence_service | 12.5\(1\) | - | - |
cpe:2.3:a:cisco:unified_communications_manager_im_and_presence_service:12.5\(1\):*:*:*:*:*:*:*
|
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
3.1 (cna)
MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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-2020-27121 |
2025-11-11 15:20:32 | 2025-11-11 07:36:15 |
| NVD | nvd_CVE-2020-27121 |
2025-11-11 14:57:05 | 2025-11-11 07:44:40 |
| CNNVD | cnnvd_CNNVD-202011-313 |
2025-11-11 15:10:31 | 2025-11-11 07:56:31 |
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-202011-313
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']