CVE-2021-1528
7.8 · HIGHOverview
CVE-2021-1528 is a high-severity vulnerability affecting cisco catalyst_sd-wan_manager. It was published on June 4, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from cisco. Update catalyst_sd-wan_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | catalyst_sd-wan_manager | >= 20.4, < 20.4.2 | Affected |
| cisco | sd-wan_vbond_orchestrator | >= 20.4, < 20.4.2 | Affected |
| cisco | vsmart_controller | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_100_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_1000_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_100b_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_100m_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_100wm_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_2000_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_5000_firmware | >= 20.4, < 20.4.2 | Affected |
| cisco | vedge_cloud_firmware | >= 20.4, < 20.4.2 | Affected |
Frequently Asked Questions
What is CVE-2021-1528?
CVE-2021-1528 is a high-severity vulnerability affecting cisco catalyst_sd-wan_manager. It was published on June 4, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2021-1528?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-1528?
Check the references section for vendor advisories and patches from cisco. Update catalyst_sd-wan_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-1528?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-1528 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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