CVE-2022-22706 is a kernel driver unspecified vulnerability in Arm Mali Graphics Processing Unit (GPU). CISA added it to the Known Exploited Vulnerabilities catalogue on 30 March 2023, which means attackers have used it in real attacks. Arm Mali GPU Kernel Driver contains an unspecified vulnerability that allows a non-privileged user to achieve write access to read-only memory pages.
What the vulnerability means in a GPU kernel driver
CVE-2022-22706 is dangerous because it sits in a kernel-level graphics driver, where memory protection failures can have system-wide consequences rather than a single application crash. When a non-privileged user can write to pages that should remain read-only, the boundary between ordinary user activity and privileged kernel state is weakened.
In practice, this kind of flaw matters because the GPU driver is part of the trusted computing base. If that trust boundary is broken, an attacker may be able to alter code or data that the operating system expects to be immutable, creating a path toward escalation, tampering, or instability.
Why this class of flaw is especially dangerous
Kernel driver memory protection bugs are high impact because they can undermine the assumptions that isolate users, processes, and the operating system itself. A read-only memory violation is not just a correctness issue, it can become a security control failure when attacker-controlled writes reach kernel-managed memory.
This is why vulnerability records for this CVE should be read alongside the CVE Program entry and the NIST National Vulnerability Database record. Those sources help teams confirm the canonical identifier and investigate product-specific exposure details without relying on secondary summaries.
For defenders, the important point is not just that the bug exists, but that it affects a low-level component that can influence memory integrity, driver stability, and host trust.
How organisations check exposure and prioritise response
Exposure assessment starts with asset inventory: identify which devices use Arm Mali GPU drivers, which operating systems include them, and which endpoints are actually reachable by untrusted users or untrusted code. That inventory step is essential because driver vulnerabilities are often widespread but unevenly deployed across laptops, phones, embedded devices, and virtualised environments.
Teams should then verify whether affected systems are internet-facing, exposed to remote code execution chains, or reachable by local users with limited privileges. Vendor advisories and the KEV catalogue are the authoritative places to confirm whether the issue is actively exploited and how urgently it should be treated.
Because this CVE was added to CISA’s Known Exploited Vulnerabilities catalogue, it should be triaged as a real-world exploitation concern rather than a purely theoretical driver bug. That makes prioritisation more than a patching exercise, it becomes a question of active risk reduction.
Remediation, detection, and compromise review
Remediation should follow the vendor’s advisory and patch guidance as the primary source of truth. Where immediate patching is not possible, organisations should reduce exposure by restricting local privilege, limiting untrusted code execution on impacted hosts, and tightening endpoint monitoring around kernel-driver abuse patterns.
Post-patch review matters because exploitation of a kernel driver can leave behind more than the original flaw. Teams should look for signs of tampering, unusual crashes, suspicious privilege changes, or evidence that attacker activity occurred before the patch was applied. If exploitation is suspected, review whether local accounts, tokens, or privileged sessions may also have been abused during the incident.
For a broader control view, vulnerability handling and verification should be integrated with a disciplined remediation process such as the Vulnerability Management Guide, which covers scope, prioritisation, exceptions, and verification. For this class of bug, the key is to prove not only that the patch was installed, but that the affected hosts were also checked for signs of prior compromise.
Risk and Threat Considerations
A kernel driver flaw that permits writes to read-only memory pages can be used to break core system assumptions, including integrity protections that normally prevent untrusted code from altering privileged state. That makes the issue attractive for attackers who want escalation, persistence, or a stable foothold on the host.
Failure mechanism: The attacker gains a write primitive in kernel space or adjacent trusted memory, then uses it to change protected state, weaken security controls, or destabilise the system in ways that support further compromise.
Impact: Successful exploitation can enable privilege escalation, kernel tampering, driver abuse, or follow-on actions that are difficult to detect and may survive ordinary user-level containment.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
NIST SP 800-53 Rev 5, CIS Controls v8 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-53 Rev 5 | SI-2 — Flaw Remediation | This CVE requires timely remediation of a known software flaw. |
| SI-7 — Software, Firmware, and Information Integrity | Kernel memory corruption can undermine trusted code and system integrity. | |
| Recommendation — Track and remediate the driver flaw promptly, then verify affected hosts have been updated. Hunt for signs of integrity loss or tampering on hosts exposed to the vulnerable driver. | ||
| CIS Controls v8 | CIS-7 — Continuous Vulnerability Management | Actively exploited CVEs require inventory, prioritisation, and remediation discipline. |
| CIS-10 — Malware Defenses | Driver exploitation can support persistence and evasion that malware controls should detect. | |
| Recommendation — Prioritise the vulnerable driver in your vulnerability management workflow and confirm remediation. Use endpoint protections to detect suspicious driver abuse and post-exploitation activity. | ||
| NIST CSF 2.0 | PR.IP-12 — Vulnerability Management | The subject is an exploited vulnerability that requires managed remediation and verification. |
| Recommendation — Apply vulnerability management processes to scope, patch, and verify affected systems. | ||
Practitioner Guidance
Why practitioners should care: Treat kernel graphics drivers as security-sensitive dependencies, not just hardware support components. If they are exploitable, they can convert a low-privilege foothold into host-level compromise faster than many application-layer bugs.
What to watch for: Focus on devices where local user access, untrusted workloads, or weak endpoint hardening increases the chance that a driver flaw can be reached and used reliably. Prioritise systems that are both exposed and difficult to reimage quickly.
Practitioner takeaway: For exploited kernel driver vulnerabilities, patching is necessary but not sufficient, you also need exposure validation and a compromise review on the hosts that were vulnerable before the fix.