CVE-2021-34740 (CNNVD-202109-1576)
中文标题:
Cisco Aironet Access Points 缓冲区错误漏洞
英文标题:
Cisco Aironet Access Points WLAN Control Protocol Packet Buffer Leak Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco Aironet Access Points(aps)是美国思科(Cisco)公司的一款网络接入点设备。 Cisco Aironet Access Points 中存在缓冲区错误漏洞,该漏洞源于产品WLAN控制协议(WCP)实现不当导致无法正常处理意外的802.11数据。攻击者可通过该漏洞导致包缓冲区泄露或拒绝服务。
英文描述:
A vulnerability in the WLAN Control Protocol (WCP) implementation for Cisco Aironet Access Point (AP) software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect error handling when an affected device receives an unexpected 802.11 frame. An attacker could exploit this vulnerability by sending certain 802.11 frames over the wireless network to an interface on an affected AP. A successful exploit could allow the attacker to cause a packet buffer leak. This could eventually result in buffer allocation failures, which would trigger a reload of the affected device.
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 Aironet Access Point Software | n/a | - | - |
cpe:2.3:a:cisco:cisco_aironet_access_point_software:n_a:*:*:*:*:*:*:*
|
| cisco | aironet_access_point_software | * | - | - |
cpe:2.3:o:cisco:aironet_access_point_software:*:*:*:*:*:*:*:*
|
| cisco | aironet_access_point_software | 17.2 | - | - |
cpe:2.3:o:cisco:aironet_access_point_software:17.2:*:*:*:*:*:*:*
|
| cisco | aironet_access_point_software | 17.3 | - | - |
cpe:2.3:o:cisco:aironet_access_point_software:17.3:*:*:*:*:*:*:*
|
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:A/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-2021-34740 |
2025-11-11 15:21:00 | 2025-11-11 07:36:55 |
| NVD | nvd_CVE-2021-34740 |
2025-11-11 14:57:43 | 2025-11-11 07:45:13 |
| CNNVD | cnnvd_CNNVD-202109-1576 |
2025-11-11 15:10:43 | 2025-11-11 07:56:54 |
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-202109-1576
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 4
- data_sources: ['cve'] -> ['cve', 'nvd']