What is CVE-2018-5906?

CVE-2018-5906 is a high-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-11-27.

How severe is CVE-2018-5906?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Google Android

CVE-2018-5906

In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, there is a possible buffer overflow in debugfs module due to lack of check in size of input before copying into buffer.

Vulnerability class: Buffer Overflow

Published 2018-11-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 7.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.codeaurora.org/security-bulletin/2018/08/06/august-2018-code-aurora-securit… (Patch, Third Party Advisory)
source.codeaurora.org/quic/la/kernel/msm-4.4/commit/ (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-5906?: CVE-2018-5906 is a high-severity vulnerability in Google Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-11-27.
How severe is CVE-2018-5906?: High severity. CVSS v3 base score is 7.8 out of 10.