All vulnerabilities
CVE-2026-20122

Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability

Cisco Catalyst SD-WAN MangerNetwork & edge
Open in ThreatlineRecord JSON
CVSS
5.4Medium
ExploitationExploited in the wildAdded to KEV 20 Apr 2026CISA KEV
Exploit odds (EPSS)25.8%Chance of exploitation activity in the next 30 days, higher than 97% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline23 Apr 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionPlease adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 25 Feb 2026, 16:14 UTCPublishedCVE List
  2. 20 Apr 2026Added to CISA KEVCISA KEV

Description

Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.

Text from CVE List

Affected versions 30

  • Cisco Catalyst SD-WAN Manageraffected: 20.1.12CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.4CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.5CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 20.1.1.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 20.1.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.3.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.2CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.099CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.6CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.7CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.8CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.0.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.1.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.302CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.303CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.097CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.2.098CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.10CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.6.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 19.0.1aCVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.2.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.3CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.8CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.3.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.4.0CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 18.3.1CVE List
  • Cisco Catalyst SD-WAN Manageraffected: 17.2.6CVE List

References 4