CVE-2026-20126

HIGH EPSS 21.6%
Published Feb 25, 20264mo ago · Modified Mar 4, 20263mo ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Mar 4, 2026 3mo ago

Description

A vulnerability in Cisco Catalyst SD-WAN Manager could allow an authenticated, local attacker with low privileges to gain root privileges on the underlying operating system. This vulnerability is due to an insufficient user authentication mechanism in the REST API. An attacker could exploit this vulnerability by sending a request to the REST API of the affected system. A successful exploit could allow the attacker to gain root privileges on the underlying operating system.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
21.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-648

Affected Products 5

VendorProductVersionRange
ciscocatalyst_sd-wan_manager* <20.9.8.2
ciscocatalyst_sd-wan_manager*≥20.11  –  <20.12.5.3
ciscocatalyst_sd-wan_manager*≥20.13  –  <20.15.4.2
ciscocatalyst_sd-wan_manager*≥20.16  –  <20.18.2.1
ciscocatalyst_sd-wan_manager20.12.6any

References 1

  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.