CVE-2021-29256
8.8 · HIGH Actively ExploitedOverview
CVE-2021-29256 is a high-severity vulnerability affecting arm bifrost_gpu_kernel_driver. It was published on May 24, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
. The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.
Remediation
Check the references section for vendor advisories and patches from arm. Update bifrost_gpu_kernel_driver 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 |
|---|---|---|---|
| arm | bifrost_gpu_kernel_driver | >= r16p0, < r30p0 | Affected |
| arm | midgard_gpu_kernel_driver | >= r28p0, < r31p0 | Affected |
| arm | valhall_gpu_kernel_driver | >= r19p0, < r30p0 | Affected |
Frequently Asked Questions
What is CVE-2021-29256?
CVE-2021-29256 is a high-severity vulnerability affecting arm bifrost_gpu_kernel_driver. It was published on May 24, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2021-29256?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-29256?
Check the references section for vendor advisories and patches from arm. Update bifrost_gpu_kernel_driver 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-2021-29256?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-29256 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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