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CVE-2026-20210— Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

Quick assessment

Affected
Cisco Cisco Catalyst SD-WAN Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage）是美国思科（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存在安全漏洞，该漏洞源于未能对设备配置和模板中的敏感信息进行编辑，可能导致具有只读权限的经过身份验证的远程攻击者将权限提升到高权限用户，从而访问或修改配置设置。

CVSS 5.4 · Medium EPSS 0.19% · P8

Affected Version Matrix 356

VendorProduct Version RangeStatus
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
… +348 more rows
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I. Basic Information for CVE-2026-20210

Vulnerability Information
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Vulnerability Title
Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an authenticated, remote attacker with read-only permissions to modify configurations and perform unauthorized actions on an affected system. This vulnerability exists because of a failure to redact sensitive information within device configurations and templates. An attacker could exploit this vulnerability by elevating their read-only permissions to those of a high-privileged user. A successful exploit could allow the attacker to access or modify configuration settings within Cisco Catalyst SD-WAN Manager as a high-privileged user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
日志记录过多数据
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage） 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Catalyst SD-WAN Manager（Cisco SD-WAN vManage）是美国思科（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存在安全漏洞，该漏洞源于未能对设备配置和模板中的敏感信息进行编辑，可能导致具有只读权限的经过身份验证的远程攻击者将权限提升到高权限用户，从而访问或修改配置设置。
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-2026-20210

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III. Intelligence Information for CVE-2026-20210

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Vendor Advisories for CVE-2026-20210 (2)

Same Patch Batch · Cisco · 2026-05-14 · 4 CVEs total

CVE-2026-20182 10.0 CRITICAL Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
CVE-2026-20224 8.6 HIGH Cisco Catalyst SD-WAN Manager XML External Entity Injection Vulnerability
CVE-2026-20209 5.4 MEDIUM Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Catalyst SD-WAN Manager
Same vendor: Cisco
Same weakness: CWE-779

V. Comments for CVE-2026-20210

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