CVE-2011-1823
Android OS Privilege Escalation Vulnerability
- High 7.8
- Exploited: added to CISA KEV 8 Sep 2022
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.
Key facts
- Published
- 9 Jun 2011
- Last changed
- 22 Oct 2025
- Assigned by
- mitre
- KEV added
- 8 Sep 2022
- KEV fix due
- 29 Sep 2022
- EPSS
- 41.367% likely to be exploited in the next 30 days, higher than 98.694% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 9 Jun 2011 Published
- 8 Sep 2022 CVE-2011-1823 added to CISA KEV
- 8 Sep 2022 Added to the CISA KEV catalogue