CVE-2021-1528 Cisco SD-WAN Software Privilege Escalation Vulnerability
An authenticated local attacker can gain root privileges by invoking a privileged process in Cisco SD-WAN Software.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-1528?
CVE-2021-1528 is a high-severity vulnerability in Cisco Catalyst Sd-Wan Manager, published on 4 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges on an affected system. This vulnerability exists because the affected software does not properly restrict access to privileged processes. An attacker could exploit this vulnerability by invoking a privileged process in the affected system. A successful exploit could allow the attacker to perform actions with the privileges of the root user.
Weakness: CWE-250
Which versions are affected by CVE-2021-1528?
It affects 11 products.
Products include Cisco Catalyst Sd-Wan Manager, Cisco Sd-Wan Vbond Orchestrator, Cisco Vedge 1000 Firmware, Cisco Vedge 100 Firmware, Cisco Vedge 100b Firmware, Cisco Vedge 100m Firmware and 5 more.
How do I fix CVE-2021-1528?
No fix has been published for CVE-2021-1528 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-1528 being exploited?
There is no known exploitation of CVE-2021-1528 in the wild and no public exploit code.
Other vulnerabilities in Cisco Catalyst Sd-Wan Manager
- CVE-2026-20182 Cisco Catalyst SD-WAN Controller Authentication Bypass
- CVE-2026-20127 Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass
- CVE-2026-76504 Cisco Catalyst SD-WAN Manager Hex Encoding
- CVE-2026-20245 Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output
- CVE-2022-20775 Cisco SD-WAN Path Traversal
Sources
Also known as GHSA-cpmx-5wrq-wv6m.