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CVE-2012-6422

9.3 · HIGH

The kernel in Samsung Galaxy S2, Galaxy Note 2, MEIZU MX, and possibly other Android devices, when running an Exynos 4210 or 4412 processor, uses weak permissions (0666) for /dev/exynos-mem, which…

Published Dec 18, 2012meizuCWE-264EPSS 15.10%

Overview

CVE-2012-6422 is a high-severity vulnerability affecting meizu mx. It was published on December 18, 2012 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The kernel in Samsung Galaxy S2, Galaxy Note 2, MEIZU MX, and possibly other Android devices, when running an Exynos 4210 or 4412 processor, uses weak permissions (0666) for /dev/exynos-mem, which allows attackers to read or write arbitrary physical memory and gain privileges via a crafted application, as demonstrated by ExynosAbuse.

Remediation

Check the references section for vendor advisories and patches from meizu. Update mx 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

VendorProductVersionsStatus

References

Refarstechnica.com/security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/Refforum.xda-developers.com/showthread.php?p=35469999Refforum.xda-developers.com/showthread.php?t=2051290Refosvdb.org/88467Refproject-voodoo.org/articles/instant-fix-app-for-exynos-mem-abuse-vulnerability-no-root-required-reversibleRefwww.sammobile.com/2012/12/16/major-vulnerability-found-on-exynos-4-devices/Refwww.securityweek.com/new-vulnerability-exposed-samsungs-android-devicesRefarstechnica.com/security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/Refforum.xda-developers.com/showthread.php?p=35469999Refforum.xda-developers.com/showthread.php?t=2051290

How CyberStrike helps

Frequently asked questions

What is CVE-2012-6422?

CVE-2012-6422 is a high-severity vulnerability affecting meizu mx. It was published on December 18, 2012 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2012-6422?

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2012-6422?

Check the references section for vendor advisories and patches from meizu. Update mx 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-2012-6422?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-6422 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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