CVE-2021-1521 (CNNVD-202105-195)

MEDIUM
中文标题:
Cisco Video Surveillance 8000 Series IP Cameras 缓冲区错误漏洞
英文标题:
Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Denial of Service Vulnerability
CVSS分数: 6.5
发布时间: 2021-05-06 12:51:20
漏洞类型: 缓冲区错误
状态: PUBLISHED
数据质量分数: 0.30
数据版本: v3
漏洞描述
中文描述:

Cisco Video Surveillance 8000 Series IP Cameras是美国思科（Cisco）公司的一款视频监控摄像头。 Cisco Video Surveillance 8000 Series IP Cameras 存在缓冲区错误漏洞，该漏洞源于处理思科发现协议消息时缺少检查。攻击者可利用该漏洞导致受影响的IP摄像机意外重新加载，从而导致拒绝服务(DoS)状态。

英文描述:

A vulnerability in the Cisco Discovery Protocol implementation for Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause an affected IP camera to reload. This vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected IP camera. A successful exploit could allow the attacker to cause the affected IP camera to reload unexpectedly, resulting in a denial of service (DoS) condition. Note: 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:
CWE-119
标签:
（暂无数据）
受影响产品
厂商 产品 版本 版本范围 平台 CPE
Cisco Cisco Video Surveillance 8000 Series IP Cameras n/a - - cpe:2.3:a:cisco:cisco_video_surveillance_8000_series_ip_cameras:n_a:*:*:*:*:*:*:*
cisco video_surveillance_8400_firmware * - - cpe:2.3:o:cisco:video_surveillance_8400_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8000p_firmware * - - cpe:2.3:o:cisco:video_surveillance_8000p_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8020_firmware * - - cpe:2.3:o:cisco:video_surveillance_8020_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8030_firmware * - - cpe:2.3:o:cisco:video_surveillance_8030_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8070_firmware * - - cpe:2.3:o:cisco:video_surveillance_8070_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8620_firmware * - - cpe:2.3:o:cisco:video_surveillance_8620_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8630_firmware * - - cpe:2.3:o:cisco:video_surveillance_8630_firmware:*:*:*:*:*:*:*:*
cisco video_surveillance_8930_firmware * - - cpe:2.3:o:cisco:video_surveillance_8930_firmware:*:*:*:*:*:*:*:*
解决方案
中文解决方案:
（暂无数据）
英文解决方案:
（暂无数据）
临时解决方案:
（暂无数据）
参考链接
20210505 Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Denial of Service Vulnerability vendor-advisory
cve.org
访问
CVSS评分详情
3.1 (cna)
MEDIUM
6.5
CVSS向量: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
机密性
NONE
完整性
NONE
可用性
HIGH
时间信息
发布时间:
2021-05-06 12:51:20
修改时间:
2024-11-08 23:16:10
创建时间:
2025-11-11 15:36:33
更新时间:
2025-11-11 15:56:44
利用信息
暂无可利用代码信息
数据源详情
数据源 记录ID 版本 提取时间
CVE cve_CVE-2021-1521 2025-11-11 15:20:45 2025-11-11 07:36:33
NVD nvd_CVE-2021-1521 2025-11-11 14:57:36 2025-11-11 07:44:55
CNNVD cnnvd_CNNVD-202105-195 2025-11-11 15:10:38 2025-11-11 07:56:44
版本与语言
当前版本: v3
主要语言: EN
支持语言:
EN ZH
安全公告
暂无安全公告信息
变更历史
v3 CNNVD
2025-11-11 15:56:44
vulnerability_type: 未提取 → 缓冲区错误; cnnvd_id: 未提取 → CNNVD-202105-195; data_sources: ['cve', 'nvd'] → ['cnnvd', 'cve', 'nvd']
查看详细变更
  • vulnerability_type: 未提取 -> 缓冲区错误
  • cnnvd_id: 未提取 -> CNNVD-202105-195
  • data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
v2 NVD
2025-11-11 15:44:55
affected_products_count: 1 → 9; data_sources: ['cve'] → ['cve', 'nvd']
查看详细变更
  • affected_products_count: 1 -> 9
  • data_sources: ['cve'] -> ['cve', 'nvd']