CVE-2011-1823

CVE-2011-1823 is a high-severity vulnerability in Google Android with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-09-08). The underlying weakness is classified as CWE-190.

Key facts

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.

Frequently asked questions

What is CVE-2011-1823?
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.
How severe is CVE-2011-1823?
CVE-2011-1823 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2011-1823 being actively exploited?
Yes. CVE-2011-1823 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-09-08, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2011-1823?
CVE-2011-1823 primarily affects Google Android. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1823?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2011-1823 have an EU (EUVD) identifier?
Yes. CVE-2011-1823 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2011-1821. It is also flagged as exploited in the EUVD (since 2022-09-08).
When was CVE-2011-1823 published?
CVE-2011-1823 was published on 2011-06-09 and last updated on 2026-06-16.

References

Affected products (2)

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