What is CVE-2018-5863?

CVE-2018-5863 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 2018-06-15.

How severe is CVE-2018-5863?

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

Buffer overflow in Google Android

CVE-2018-5863

If userspace provides a too-large WPA RSN IE length in wlan_hdd_cfg80211_set_ie(), a buffer overflow occurs in all Android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the Linux kernel.

Vulnerability class: Buffer Overflow

Published 2018-06-15 · 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 (3.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.7% 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
Qualcomm, Inc. Android For Msm, Firefox OS Qrd — versions All Android releases from CAF using the Linux kernel

Weakness classification (CWE)

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

References

www.codeaurora.org/security-bulletin/2018/06/04/june-2018-code-aurora-security-… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2018-5863?: CVE-2018-5863 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 2018-06-15.
How severe is CVE-2018-5863?: High severity. CVSS v3 base score is 7.8 out of 10.