CVE-2018-11840

In all android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the...

7.8 High

In all android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, while processing the WLAN driver command ioctl a temporary buffer used to construct the reply message may be freed twice.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.19%Down 0.2 points since Apr 14, 2021

What each source reports

NVD Score used 7.8

Record: CVE-2018-11840
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-415
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-11840
Updated: 2026-11-02

EUVDEUVD-2018-3832 No score

Record: EUVD-2018-3832
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fhpc-4q7r-qhmx 7.8

In all android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the...

Record: GHSA-fhpc-4q7r-qhmx
CVSS 3.0: 7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-415
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11840 is a high vulnerability (CVSS 7.8) in Google Android, published September 18, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.