CVE-2011-1823

The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are...

7.8 HighIn KEV

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

41.4%Up 39.2 points since Feb 4, 2022

What each source reports

NVD Score used 7.8

Record: CVE-2011-1823
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-190
Updated: 2026-11-02

CVE List 7.8

Record: CVE-2011-1823
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-190
Updated: 2026-11-02

EUVDEUVD-2011-1821 7.8

Record: EUVD-2011-1821
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-3hj2-5cwp-2349 7.8

The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are...

Record: GHSA-3hj2-5cwp-2349
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-190
Updated: 2026-11-02

CISA KEV No score

Android OS Privilege Escalation Vulnerability

The vold volume manager daemon in Android kernel trusts messages from a PF_NETLINK socket, which allows an attacker to execute code and gain root privileges. This vulnerability is associated with GingerBreak and Exploit.AndroidOS.Lotoor.

Record: CVE-2011-1823
Weakness: CWE-189
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	exploitation
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, CISA KEV, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-1823 is a high vulnerability (CVSS 7.8) in Google Android, published June 9, 2011. CISA lists it as known to be exploited, since September 8, 2022. EUVD reports exploitation since September 8, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 41.4%, the 98th percentile. No source names a fixed version.

References

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