---
id: "CVE-2011-1823"
kind: "vulnerability"
aliases: ["CVE-2011-1823"]
title: "google android: The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are received from a\u2026"
severity: "high"
cvss: 7.8
epss: 0.41367
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "Android Android OS", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "google android", "fixed": ["2.3.4"], "affected": ">= 2.0, < 2.3.4", "ecosystem": "vendor"}, {"name": "google android", "fixed": [], "affected": "= 3.0", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["android", "android-devices", "exploited", "infrastructure", "mobile"]
not_affected_if: ["patched-device"]
published_at: "2011-06-09T10:36:27+00:00"
first_seen_at: "2026-10-23T19:11:52+00:00"
updated_at: "2026-10-23T22:29:04+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2011-1823", "first_seen_at": "2026-10-23T19:11:52+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2011-1823", "first_seen_at": "2026-10-23T19:13:45+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1823", "first_seen_at": "2026-10-23T22:29:04+00:00"}]
---

# google android: The vold volume manager daemon on Android 3.0 and 2.x before 2.3.4 trusts messages that are received from a…

The vold volume manager daemon on Android trusts messages arriving over a PF_NETLINK socket, so a local app can make it run code. The attacker gets root privileges on the device.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Android Android OS affected ? fixed ?
- vendor:google android affected >= 2.0, < 2.3.4 fixed 2.3.4
- vendor:google android affected = 3.0 fixed ?

## How to check

Check the Android security patch level in Settings > About phone; the sources do not name the patched level.

## Fix

Apply the Android security update from the device vendor, as CISA directs; the sources do not name a specific version.

## Timeline

- 2026-10-23T19:11:52+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2011-1823
- 2026-10-23T19:13:45+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2011-1823
- 2026-10-23T22:29:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2011-1823

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_