CVE-2021-38785
HIGHCVSS 7.5/10EPSS 1.82%
Last modified
CVE-2021-38785 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.. EPSS estimates a 1.82% chance of exploitation in the next 30 days.
Description
There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Allwinnertech | Android Q Sdk | 1.0 |
References
- https://vul.wangan.com/a/CNVD-2021-49170Third Party Advisory
- https://www.allwinnertech.com/index.php?c=product&a=index&id=92Product, Vendor Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-49170Third Party Advisory
- https://vul.wangan.com/a/CNVD-2021-49170Third Party Advisory
- https://www.allwinnertech.com/index.php?c=product&a=index&id=92Product, Vendor Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-49170Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-38785?
There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.
How severe is CVE-2021-38785?
CVE-2021-38785 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.82% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38785?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-38785?
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Scan your code nowSource: NVD / NIST