What is CVE-2019-2317?

CVE-2019-2317 is a critical-severity vulnerability in Qualcomm Msm8905, classified under Use of Insufficiently Random Values. CVSS score: 9.8/10. Published 2020-03-05.

How severe is CVE-2019-2317?

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

Vulnerability in Qualcomm Msm8905

CVE-2019-2317

The secret key used to make the Initial Sequence Number in the TCP SYN packet could be brute forced and therefore can be predicted in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in MSM8905, MSM8909, MSM8917, MSM8920, MSM8937, MSM8940, MSM8953, Nicobar, QCM2150, QM215, SC8180X, SDM429, SDM439, SDM450, SDM632, SDX24, SDX55, SM6150, SM7150, SM8150

Published 2020-03-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (50.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

www.qualcomm.com/company/product-security/bulletins/march-2020-bulletin (Vendor Advisory)

Frequently asked questions

What is CVE-2019-2317?: CVE-2019-2317 is a critical-severity vulnerability in Qualcomm Msm8905, classified under Use of Insufficiently Random Values. CVSS score: 9.8/10. Published 2020-03-05.
How severe is CVE-2019-2317?: Critical severity. CVSS v3 base score is 9.8 out of 10.