Known exploited flaw update for Cisco Catalyst SD-WAN Manger
April 21, 2026 6:50am
CISA added a known exploited vulnerability affecting Cisco Catalyst SD-WAN Manger on 2026-04-20. Security teams should review remediation guidance for exposed s...
CISA added a known exploited vulnerability affecting Cisco Catalyst SD-WAN Manger on 2026-04-20. Security teams should review remediation guidance for exposed systems.
5-Second Takeaway
CISA added a known exploited vulnerability affecting Cisco Catalyst SD-WAN Manger on 2026-04-20.
Why This Matters
Security teams should review remediation guidance for exposed systems.
What Changed
- CISA added this vulnerability to the Known Exploited Vulnerabilities catalog on Apr 20, 2026.
- Affected vendor and product: Cisco Catalyst SD-WAN Manger.
- Public 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.
- Agencies and security teams are expected to review patch or mitigation guidance.
- Prioritizing confirmed exploited vulnerabilities can reduce immediate operational risk.
- CISA KEV Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Key Facts
- CISA added this vulnerability to the Known Exploited Vulnerabilities catalog on Apr 20, 2026.
- Affected vendor and product: Cisco Catalyst SD-WAN Manger.
- Public 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.
- Agencies and security teams are expected to review patch or mitigation guidance.
Key Numbers
- CISA added this vulnerability to the Known Exploited Vulnerabilities catalog on Apr 20, 2026.