Cisco Catalyst SD-WAN Manager Web UI Privilege Escalation
CVE-2026-20210 is a privilege escalation vulnerability in the web UI of Cisco Catalyst SD-WAN Manager (formerly SD-WAN vManage). According to the provided Cisco description, the issue exists because sensitive information within device configurations and templates is not properly redacted. A remote authenticated attacker who has only read-only permissions can exploit this exposure to elevate privileges to those of a high-privileged user, enabling unauthorized modification of configurations and other administrative actions within the affected system.
Are you exposed to this one?
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A privilege escalation vulnerability affecting Cisco Catalyst SD-WAN Manager.
A Cisco Catalyst SD-WAN vulnerability referenced in the advisory notice; specific technical details are not provided in the content.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.