Cisco Catalyst SD-WAN Manager Exposes Privileged API Functions to Unauthorized Callers; CISA's April 23rd KEV Remediation Deadline for Covered Entities Has Long Passed

Last refreshed2026-09-27

Status: KEV | Advisory ID: CVE-2026-20122

Key Details

CVE	CVE-2026-20122
Vulnerability Name	Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability
Affected products	Cisco Catalyst SD-WAN Manger
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified as	CWE-648 (Incorrect Use of Privileged APIs)
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-04-20.
Exploitation prediction (EPSS)	24.98% probability of exploitation in the next 30 days (98% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline	2026-04-23 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
Cisco	Catalyst SD-WAN Manger

Vendor

Product

Affected Versions

Patch Status

Cisco

Catalyst SD-WAN Manger

Subsystems	Industrial Network - Routers/Firewalls
Sectors	Multiple

What to Know

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.

What to Do

Monitor Cisco's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-20122
CVE	https://www.cve.org/CVERecord?id=CVE-2026-20122

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-20122

CVE

https://www.cve.org/CVERecord?id=CVE-2026-20122

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-04-20
Required Action Due Date	2026-04-23
Required Action	Please 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.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-04-20

Required Action Due Date

2026-04-23

Required Action

Please 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.