SD-WAN
Coverage of SD-WAN in the Nexus archive.
- Cisco serves up yet another perfect 10 bug with Secure Workload admin flaw
Cisco disclosed a critical vulnerability (CVE-2026-20223) with a perfect 10.0 CVSS score in its Secure Workload platform that allows unauthenticated attackers to gain Site Admin privileges and access sensitive information across tenant boundaries. The flaw affects both SaaS and on-premises deployments and requires patching to version 3.10.8.3 or 4.0.3.17, though cloud-hosted instances have already been remediated. This marks the latest in a series of maximum-severity security flaws discovered in Cisco infrastructure products.
- Maximum Severity Cisco SD-WAN Bug Exploited in the Wild
A severe bug in Cisco's SD-WAN has been exploited by a threat actor, marking the second time this year a CVSS 10.0 vulnerability has been leveraged in Cisco's network control system. This exploit poses significant risks to affected networks. The vulnerability has a maximum severity score.