CVE-2026-20262— Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability
In-the-Wild Activity Observed github_trending · low cisa_kev · confirmed
Affected Version Matrix 376
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager | 20.1.12 | affected |
19.2.1 | affected | ||
18.4.4 | affected | ||
18.4.5 | affected | ||
20.1.1.1 | affected | ||
20.1.1 | affected | ||
19.3.0 | affected | ||
19.2.2 | affected | ||
| … +368 more rows | |||
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I. Basic Information for CVE-2026-20262
Vulnerability Information
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Vulnerability Title
Cisco Catalyst SD-WAN Manager Arbitrary File Write Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker to create a file or overwrite any file on the filesystem of an affected system. This vulnerability exists because the affected software does not properly validate user-supplied input during a file upload process. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected API endpoint of the affected system. A successful exploit could allow the attacker to create or overwrite any file on the underlying operating system. This file could later be used to elevate to root. To exploit this vulnerability, the attacker must have valid credentials with at least a lower-privileged, single-task user account.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Catalyst SD-WAN Manager 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Catalyst SD-WAN Manager是美国Cisco公司的一个高度可定制的仪表板。 可简化和自动化 Cisco SD-WAN 的部署、配置、管理和操作。 Cisco Catalyst SD-WAN Manager存在路径遍历漏洞，该漏洞源于在上传文件过程中未正确验证用户提供的输入，可能导致经过身份验证的远程攻击者创建或覆盖受影响系统文件系统上的任意文件，并可被用于提升至root权限。
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 | Cisco Catalyst SD-WAN Manager | 20.1.12 | - |
II. Public POCs for CVE-2026-20262
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-20262 (1)
IV. Related Vulnerabilities
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Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage） 跨站脚本漏洞 - CVE-2026-20122
Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulne
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V. Comments for CVE-2026-20262
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