CVE-2012-6422
CVE-2012-6422 is a critical-severity vulnerability in Meizu Mx with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 15% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-264
- Affected product: Meizu Mx
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2012-6422?
- 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.
- How severe is CVE-2012-6422?
- CVE-2012-6422 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2012-6422 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2012-6422?
- CVE-2012-6422 primarily affects Meizu Mx. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2012-6422?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2012-6422 published?
- CVE-2012-6422 was published on 2012-12-18 and last updated on 2026-06-16.
References
- http://arstechnica.com/security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/
- http://forum.xda-developers.com/showthread.php?p=35469999
- http://forum.xda-developers.com/showthread.php?t=2051290
- http://osvdb.org/88467
- http://project-voodoo.org/articles/instant-fix-app-for-exynos-mem-abuse-vulnerability-no-root-required-reversible
- http://www.sammobile.com/2012/12/16/major-vulnerability-found-on-exynos-4-devices/
- http://www.securityweek.com/new-vulnerability-exposed-samsungs-android-devices
Affected products (3)
- cpe:2.3:h:meizu:mx:-:*:*:*:*:*:*:*
- cpe:2.3:h:samsung:galaxy_note_2:-:*:*:*:*:*:*:*
- cpe:2.3:h:samsung:galaxy_s2:-:*:*:*:*:*:*:*
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