CVE-2012-6422 in the critical feed json
The kernel in Samsung Galaxy S2, Galaxy Note 2, MEIZU MX, and possibly other Android devices, when running an Exynos 4210 or 4412 processor…
published 2012-12-18 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-6277
- cvss
- 9.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 15.1%
- EPSS 15.1% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
15.10% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- forum.xda-developers.com http://forum.xda-developers.com/showthread.php?p=35469999 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-264 Permissions, Privileges, and Access Controls
References
-
forum.xda-developers.com
/showthread.php?p=35469999
exploit
- securityweek.com /new-vulnerability-exposed-samsungs-android-devices
- project-voodoo.org /articles/instant-fix-app-for-exynos-mem-abuse-vulnerability-no-root-required-reversible
- arstechnica.com /security/2012/12/developer-warns-of-critical-vulnerability-in-many-samsung-smartphones/
- forum.xda-developers.com /showthread.php?t=2051290
- sammobile.com /2012/12/16/major-vulnerability-found-on-exynos-4-devices/
-
osvdb.org
/88467
vdb-entry
Sources
- CVE List CVE-2012-6422
- NVD CVE-2012-6422
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.