CVE-2026-20312 Cisco Catalyst SD-WAN Security Hardening Release - Information Disclosure Vulnerabilities
Attackers can access sensitive information stored in cleartext within Cisco Catalyst SD-WAN Controller and Manager components.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20312?
CVE-2026-20312 is a high-severity vulnerability in Cisco Catalyst SD-WAN Controller, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Catalyst SD-WAN engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20312 are related to Cleartext storage of sensitive information issues that are grouped under the Common Weakness Enumeration (CWE) CWE-312.
Weakness: CWE-312
Which versions are affected by CVE-2026-20312?
How do I fix CVE-2026-20312?
No fix has been published for CVE-2026-20312 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20312 being exploited?
There is no known exploitation of CVE-2026-20312 in the wild and no public exploit code.
Sources
Also known as GHSA-5gw4-ww4c-vqvv.