Cisco has disclosed that two extra vulnerabilities affecting Catalyst SD-WAN Supervisor (previously SD-WAN vManage) have come underneath energetic exploitation within the wild.
The vulnerabilities in query are listed beneath –
- CVE-2026-20122 (CVSS rating: 7.1) – An arbitrary file overwrite vulnerability that would enable an authenticated, distant attacker to overwrite arbitrary information on the native file system. Profitable exploitation requires the attacker to have legitimate read-only credentials with API entry on the affected system.
- CVE-2026-20128 (CVSS rating: 5.5) – An data disclosure vulnerability that would enable an authenticated, native attacker to achieve Knowledge Assortment Agent (DCA) person privileges on an affected system. Profitable exploitation requires the attacker to have legitimate vManage credentials on the affected system.
Patches for the safety defects, together with CVE-2026-20126, CVE-2026-20129, and CVE-2026-20133, have been launched by Cisco late final month within the following variations –
- Sooner than Model 20.91 – Migrate to a set launch.
- Model 20.9 – Mounted in 20.9.8.2
- Model 20.11 – Mounted in 20.12.6.1
- Model 20.12 – Mounted in 20.12.5.3 and 20.12.6.1
- Model 20.13 – Mounted in 20.15.4.2
- Model 20.14 – Mounted in 20.15.4.2
- Model 20.15 – Mounted in 20.15.4.2
- Model 20.16 – Mounted in 20.18.2.1
- Model 20.18 – Mounted in 20.18.2.1
“In March 2026, the Cisco PSIRT turned conscious of energetic exploitation of the vulnerabilities which might be described in CVE-2026-20128 and CVE-2026-20122 solely,” the networking tools main mentioned. The corporate didn’t elaborate on the dimensions of the exercise and who could also be behind it.
In mild of energetic exploitation, customers are advisable to replace to a set software program launch as quickly as potential, and take steps to restrict entry from unsecured networks, safe the home equipment behind a firewall, disable HTTP for the Catalyst SD-WAN Supervisor net UI administrator portal, flip off community companies like HTTP and FTP if not required, change the default administrator password, and monitor log site visitors for any sudden site visitors to and from methods.
The disclosure comes every week after the corporate mentioned a crucial safety flaw in Cisco Catalyst SD-WAN Controller and Catalyst SD-WAN Supervisor (CVE-2026-20127, CVSS rating: 10.0) has been exploited by a extremely refined cyber risk actor tracked as UAT-8616 to ascertain persistent footholds into high-value organizations.
This week, Cisco additionally launched updates to handle two maximum-severity safety vulnerabilities in Safe Firewall Administration Middle (CVE-2026-20079 and CVE-2026-20131, CVSS scores: 10.0) that would enable an unauthenticated, distant attacker to bypass authentication and execute arbitrary Java code as root on an affected system.
