CVE-2026-20312 is a high-severity information disclosure vulnerability in Cisco Catalyst SD-WAN Software affecting Cisco Catalyst SD-WAN Controller and Cisco Catalyst SD-WAN Manager. The issue covers multiple internally discovered cases in which sensitive information is stored in cleartext rather than being protected with encryption or equivalent safeguards. Cisco classifies the weakness as CWE-312. The vulnerability was addressed through Catalyst SD-WAN security hardening releases produced after an internal security review. Available information does not identify a specific vulnerable function or code path, but indicates the flaw is remotely exploitable and affects Catalyst SD-WAN deployments broadly across supported deployment models and versions in the affected ranges.
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.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A cleartext storage of sensitive information vulnerability affecting Cisco Catalyst SD-WAN Software.
A high-severity Catalyst SD-WAN vulnerability involving cleartext storage of sensitive information.
A high-severity Cisco Catalyst SD-WAN Software vulnerability involving cleartext storage of sensitive information, potentially exposing credentials or secrets.
A cleartext storage of sensitive information vulnerability in Cisco Catalyst SD-WAN Software.
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.