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.
Key facts
- CVSS score
- 9.3 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-264
- EPSS score
- 15.1% (97th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-6277)
- Published
- December 18, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-6277 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.
View on the EU Vulnerability DatabaseAffected products
- meizu / mx
- samsung / galaxy note 2
- samsung / galaxy s2
Certified products that may be affected
4 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Samsung Galaxy Note 5 and Tab S2 - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-10683-2015 - archived
- Samsung Galaxy Note 5 & Tab S2 - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-10684-2015 - archived
- Samsung Galaxy Note Edge & Galaxy Tab Active - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-10617-2014 - archived
- Samsung Galaxy Note 4, Galaxy Note Edge, Galaxy Alpha, Galaxy Tab S 8.4 LTE & 10.5 LTE, & Galaxy Tab Active with KNOX 2 - Samsung Electronics Co., Ltd. - Common Criteria CCEVS-VR-VID-10597-2014 - archived
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(Exploit)
- 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
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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