CVE-2021-1258
5.5 · MEDIUMOverview
CVE-2021-1258 is a medium-severity vulnerability affecting cisco anyconnect_secure_mobility_client. It was published on January 13, 2021 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
A vulnerability in the upgrade component of Cisco AnyConnect Secure Mobility Client could allow an authenticated, local attacker with low privileges to read arbitrary files on the underlying operating system (OS) of an affected device. The vulnerability is due to insufficient file permission restrictions. An attacker could exploit this vulnerability by sending a crafted command from the local CLI to the application. A successful exploit could allow the attacker to read arbitrary files on the underlying OS of the affected device. The attacker would need to have valid user credentials to exploit this vulnerability.
Remediation
Check the references section for vendor advisories and patches from cisco. Update anyconnect_secure_mobility_client 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 | anyconnect_secure_mobility_client | >= 0, < 4.9.03047 | Affected |
| mcafee | agent_epolicy_orchestrator_extension | >= 0, < 5.7.6 | Affected |
References
Frequently Asked Questions
What is CVE-2021-1258?
CVE-2021-1258 is a medium-severity vulnerability affecting cisco anyconnect_secure_mobility_client. It was published on January 13, 2021 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-1258?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-1258?
Check the references section for vendor advisories and patches from cisco. Update anyconnect_secure_mobility_client 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-2021-1258?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-1258 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.
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