What is CVE-2014-9991?

CVE-2014-9991 is a critical-severity vulnerability in Qualcomm Mdm9206, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-04-18.

How severe is CVE-2014-9991?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Qualcomm Mdm9206

CVE-2014-9991

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9625, MDM9635M, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 615/16/SD 415, SD 625, SD 650/52, SD 808, SD 810, and SD 450, if a client or host sends more than 16k bytes of USB mass storage transfer, a buffer overflow occurs.

Vulnerability class: Buffer Overflow

Published 2018-04-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (68.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: -0.000

Affected products

Weakness classification (CWE)

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

References

source.android.com/security/bulletin/2018-04-01 (Vendor Advisory)
www.securityfocus.com/bid/103671 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2014-9991?: CVE-2014-9991 is a critical-severity vulnerability in Qualcomm Mdm9206, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-04-18.
How severe is CVE-2014-9991?: Critical severity. CVSS v3 base score is 9.8 out of 10.