Live › vulnerability › CVE-2026-20122
Go to dashboardCisco Catalyst SD-WAN Manager has an incorrect use of privileged APIs flaw where improper file handling on the API lets an attacker upload a malicious file. A successful exploit lets the attacker overwrite arbitrary files and gain vmanage user privileges.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
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.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Cisco Catalyst SD-WAN Manger | vendor | – | – |
| cisco catalyst sd-wan manager | vendor | < 20.9.8.2 | 20.9.8.2 |
| cisco catalyst sd-wan manager | vendor | >= 20.10, < 20.12.5.3 | 20.12.5.3 |
| cisco catalyst sd-wan manager | vendor | >= 20.13, < 20.15.4.2 | 20.15.4.2 |
| cisco catalyst sd-wan manager |
| vendor |
| >= 20.16, < 20.18.2.1 |
| 20.18.2.1 |
| cisco catalyst sd-wan manager | vendor | = 20.12.6 | – |
Follow CISAs Emergency Directive 26-03 and Hunt & Hardening Guidance for Cisco SD-WAN Devices' referenced in the CISA notice.
Follow CISA's Emergency Directive 26-03 mitigation guidance for Cisco SD-WAN devices; unknown fixed version in the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
CISA 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.
This page as .md · .json · in your agent: get_signal("CVE-2026-20122")
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