CVE-2021-34741 (CNNVD-202111-361)
中文标题:
Cisco Email Security Appliance 输入验证错误漏洞
英文标题:
Cisco Email Security Appliance Denial of Service Vulnerability
漏洞描述
中文描述:
Cisco Email Security Appliance（ESA）是美国思科（Cisco）公司的一个电子邮件安全设备。 Cisco Email Security Appliance 存在输入验证错误漏洞，该漏洞源于传入邮件的输入验证不足造成的。攻击者可利用该漏洞对受影响的设备执行拒绝服务(DoS)攻击。
英文描述:
A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a 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 Email Security Appliance (ESA) | n/a | - | - |
cpe:2.3:a:cisco:cisco_email_security_appliance_(esa):n_a:*:*:*:*:*:*:*
|
| cisco | asyncos | * | - | - |
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
|
| cisco | asyncos | 13.5.3-010 | - | - |
cpe:2.3:o:cisco:asyncos:13.5.3-010:*:*:*:*:*:*:*
|
| cisco | asyncos | 13.7.0-093 | - | - |
cpe:2.3:o:cisco:asyncos:13.7.0-093:*:*:*:*:*:*:*
|
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: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-2021-34741 |
2025-11-11 15:21:00 | 2025-11-11 07:36:55 |
| NVD | nvd_CVE-2021-34741 |
2025-11-11 14:57:44 | 2025-11-11 07:45:13 |
| CNNVD | cnnvd_CNNVD-202111-361 |
2025-11-11 15:10:45 | 2025-11-11 07:57:00 |
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-202111-361
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 1 -> 4
- data_sources: ['cve'] -> ['cve', 'nvd']