CVE-2011-1823
HighExploitedPublic exploitThe 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…
Published Jun 9, 2011 · Updated Apr 21, 2026
Key Facts
Patch immediately- CVE-2011-1823 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Android (Google).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 17, 2021. Public exploit code is available.
- EPSS estimates a 41% probability of exploitation in the next 30 days.
- Fixed versions are available, including Android 2.3.4.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
41%
Higher than 98.6% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2011-1823 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Sep 8, 2022 | Sep 29, 2022 | Not reported |
| Industry KEV feed | Aug 17, 2021 | Sep 29, 2022 | Not reported |
| CIRCL KEV | Sep 8, 2022 | Sep 29, 2022 | Not reported |
| ENISA EUVD | Sep 8, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AndroidGoogle | 3.0 | 2.3.4 |
Patched Releases
Android
2.3.4
Timeline
Publicly disclosed
Jun 9, 2011
Added to Industry KEV feed
Aug 17, 2021
Added to CISA KEV
Sep 8, 2022
Added to CIRCL KEV
Sep 8, 2022
Added to ENISA EUVD
Sep 8, 2022
Last updated
Apr 21, 2026
Weakness Type
- CWE-190 Integer Overflow or Wraparound
References
- advisoryandroid-vold-priv-escalation(67977)
- exploithttp://c-skills.blogspot.com/2011/04/yummy-yummy-gingerbreak.html
- exploithttp://forum.xda-developers.com/showthread.php?t=1044765
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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 met…
Affected: Android (Google) versions 3.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 17, 2021.
Yes. It was added on Sep 8, 2022 with a federal remediation due date of Sep 29, 2022.
Public exploit code is available.
Fixed versions are available, including Android 2.3.4.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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