# CVE-2011-1823: Android OS Privilege Escalation Vulnerability

> CVE-2011-1823: Android OS Privilege Escalation Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2011-1823
Last updated: 2025-10-22T00:05:49Z

- Published: 2011-06-09 10:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: mitre
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 41.4%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-09-08, federal due date 2022-09-29, ransomware use: Unknown

## Description

The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are received from a PF\_NETLINK socket, which allows local users to execute arbitrary code and gain root privileges via a negative index that bypasses a maximum-only signed integer check in the DirectVolume::handlePartitionAdded method, which triggers memory corruption, as demonstrated by Gingerbreak.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Android: Android OS

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2011-1823)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2011-1823)
- [http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/](http://androidcommunity.com/gingerbreak-root-for-gingerbread-app-20110421/)
- [http://android.git.kernel.org/?p=platform/system/core.git%3Ba=commit%3Bh=b620a0b1c7ae486e979826200e8e441605b0a5d6](http://android.git.kernel.org/?p=platform/system/core.git%253Ba=commit%253Bh=b620a0b1c7ae486e979826200e8e441605b0a5d6)
- [http://android.git.kernel.org/?p=platform/system/netd.git%3Ba=commit%3Bh=79b579c92afc08ab12c0a5788d61f2dd2934836f](http://android.git.kernel.org/?p=platform/system/netd.git%253Ba=commit%253Bh=79b579c92afc08ab12c0a5788d61f2dd2934836f)
- [http://android.git.kernel.org/?p=platform/system/vold.git%3Ba=commit%3Bh=c51920c82463b240e2be0430849837d6fdc5352e](http://android.git.kernel.org/?p=platform/system/vold.git%253Ba=commit%253Bh=c51920c82463b240e2be0430849837d6fdc5352e)
- [http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html](http://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html)
- [http://forum.xda-developers.com/showthread.php?t=1044765](http://forum.xda-developers.com/showthread.php?t=1044765)
- [https://exchange.xforce.ibmcloud.com/vulnerabilities/67977](https://exchange.xforce.ibmcloud.com/vulnerabilities/67977)
- [http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dont-worry-we-still-have-root-for-now/](http://www.androidpolice.com/2011/05/03/google-patches-gingerbreak-exploit-but-dont-worry-we-still-have-root-for-now/)
- [http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/](http://xorl.wordpress.com/2011/04/28/android-vold-mpartminors-signedness-issue/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2011-1823 · Markdown: https://rewindex.com/cve/CVE-2011-1823.md · JSON: https://rewindex.com/api/v1/cves/CVE-2011-1823 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:02:09.775Z