What is CVE-2018-11873?

CVE-2018-11873 is a high-severity vulnerability in Qualcomm Sd845, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2018-10-29.

How severe is CVE-2018-11873?

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

Improper input validation in Qualcomm Sd845

CVE-2018-11873

Improper input validation leads to buffer overwrite in the WLAN function that handles WLAN roam buffer in Snapdragon Mobile in version SD 845.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-10-29 · 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 (12.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.2% 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

Qualcomm Sd845
Qualcomm Sd845 Firmware
Qualcomm, Inc. Snapdragon Mobile — versions SD 845

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.qualcomm.com/company/product-security/bulletins (Vendor Advisory)
www.securityfocus.com/bid/107681 (vdb-entry)

Frequently asked questions

What is CVE-2018-11873?: CVE-2018-11873 is a high-severity vulnerability in Qualcomm Sd845, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2018-10-29.
How severe is CVE-2018-11873?: High severity. CVSS v3 base score is 7.8 out of 10.