CVE-2011-1823Android OS Privilege Escalation Vulnerability

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.

7.8 HIGHEPSS 41.36%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-16 23:30 UTC

OverviewCVSS details

7.8HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Jun 9, 2011
Assigner: mitre

Affected

android (google)

Versions: 2.0 before 2.3.4 · 3.0
Fixed in: 2.3.4

Exploitation

Public exploit: Yes · 3 references
CISA KEV: Listed · Sep 8, 2022
KEV due date: Sep 29, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

41.36%chance of exploitation in 30 days

Higher than 98.68% of CVEs

CVSS 3.1 · NVD

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

7.2High

AV:L/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Local
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
7.8	HIGH	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2	HIGH	2.0NVD	AV:L/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Sep 29, 2022

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Details

CVE ID: CVE-2011-1823
Status: Analyzed
Assigner (CNA): mitre
Published: Jun 9, 2011
Last modified: 2026-06-16 23:30 UTC
Weaknesses: CWE-190
CWE-189

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 14:55 UTC.