CVE-2026-20125
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I. Basic Information for CVE-2026-20125
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malformed HTTP requests to an affected device. A successful exploit could allow the attacker to cause a watchdog timer to expire and the device to reload, resulting in a DoS condition. To exploit this vulnerability, the attacker must have a valid user account.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
语法无效结构处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS和Cisco IOS XE Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和Cisco IOS XE Software都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。Cisco IOS XE Software是一种网络操作系统。 Cisco IOS和Cisco IOS XE Software Release 3E存在安全漏洞，该漏洞源于用户输入验证不当，可能导致经过身份验证的远程攻击者造成设备意外重新加载，引发拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | IOS | 12.2(33)CY | - | |
| Cisco | Cisco IOS XE Software | 3.5.0E | - |
II. Public POCs for CVE-2026-20125
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2026-03-25 · 13 CVEs total
| CVE-2026-20084 | 8.6 HIGH | Cisco IOS XE Software 资源管理错误漏洞 |
| CVE-2026-20086 | 8.6 HIGH | Cisco IOS XE Wireless Controller software 安全漏洞 |
| CVE-2026-20012 | 8.6 HIGH | Cisco多款产品 安全漏洞 |
| CVE-2026-20004 | 7.4 HIGH | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20110 | 6.5 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20083 | 6.5 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20104 | 6.1 MEDIUM | Cisco多款产品 安全漏洞 |
| CVE-2026-20115 | 6.1 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20114 | 5.4 MEDIUM | Cisco IOS XE Software 安全漏洞 |
| CVE-2026-20108 | 5.4 MEDIUM | Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage） 跨站脚本漏洞 |
| CVE-2026-20113 | 5.3 MEDIUM | Cisco IOS XE Software 注入漏洞 |
| CVE-2026-20112 | 4.8 MEDIUM | Cisco IOS XE Software 跨站脚本漏洞 |
IV. Related Vulnerabilities
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
V. Comments for CVE-2026-20125
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