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CVE-2026-20209— Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability

CVSS 5.4 · Medium EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1078 · Valid Accounts

Affected Version Matrix 354

VendorProductVersion RangeStatus
CiscoCisco Catalyst SD-WAN Manager20.1.12affected
19.2.1affected
18.4.4affected
18.4.5affected
20.1.1.1affected
20.1.1affected
19.3.0affected
19.2.2affected
… +346 more rows
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I. Basic Information for CVE-2026-20209

Vulnerability Information
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Vulnerability Title
Cisco Catalyst SD-WAN Manager Privilege Escalation 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 with read-only permissions to elevate their privileges from low to high and perform actions as a high-privileged user. This vulnerability exists because sensitive session information is recorded in audit logs. An attacker could exploit this vulnerability by elevating their read-only permissions in Cisco Catalyst SD-WAN Manager to those of a high-privileged user. A successful exploit could allow the attacker to perform actions as a high-privileged user.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
日志记录过多数据
Source: NVD (National Vulnerability Database)
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，该漏洞源于敏感会话信息被记录在审计日志中，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从低提升到高，并作为高权限用户执行操作。
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

VendorProductAffected VersionsCPESubscribe
CiscoCisco Catalyst SD-WAN Manager 20.1.12 -

II. Public POCs for CVE-2026-20209

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III. Intelligence Information for CVE-2026-20209

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Advisory · 1

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

CVE-2026-2018210.0 CRITICALCisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
CVE-2026-202248.6 HIGHCisco Catalyst SD-WAN Manager XML External Entity Injection Vulnerability
CVE-2026-202105.4 MEDIUMCisco 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-2026-20209

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