CVE-2021-26708
7.0 · HIGHOverview
CVE-2021-26708 is a high-severity vulnerability affecting linux linux_kernel. It was published on February 5, 2021 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel 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 |
|---|---|---|---|
| linux | linux_kernel | >= 5.5, < 5.10.13 | Affected |
| netapp | baseboard_management_controller_500f_firmware | >= 0, < 15.3 | Affected |
| netapp | baseboard_management_controller_a250_firmware | >= 0, < 15.3 | Affected |
References
Frequently Asked Questions
What is CVE-2021-26708?
CVE-2021-26708 is a high-severity vulnerability affecting linux linux_kernel. It was published on February 5, 2021 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2021-26708?
This vulnerability has a CVSS 3.1 base score of 7.0, 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-2021-26708?
Check the references section for vendor advisories and patches from linux. Update linux_kernel 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-2021-26708?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-26708 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.
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