Medium severity · published May 14, 2026
CVE-2026-20209
Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
5.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Cisco Catalyst SD-WAN Manager · Cisco
20.1.12; 19.2.1; 18.4.4; 18.4.5; 20.1.1.1; 20.1.1; +34 more · source: vendor
CS
Catalyst Sd-wan Manager · Cisco
before 20.9.9.1; 20.10 before 20.12.5.4; 20.12.6 before 20.12.6.2; 20.13 before 20.15.4.4; 20.15.5 before 20.15.5.2; 20.16 before 20.18.2.2; +2 more · source: NVD
Affected product
CC
Cisco Catalyst SD-WAN Manager
Cisco
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