CVE-2018-19939

Name: CVE-2018-19939
Creator: NVD / NIST
Published: 2018-12-07T09:29:00.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.28%

Last modified Jun 17, 2026

CVE-2018-19939 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The Goodix GT9xx touchscreen driver for custom Linux kernels on Xiaomi daisy-o-oss and daisy-p-oss as used in Mi A2 Lite and RedMi6 pro devices through 2018-08-27 has a NULL pointer dereference in kfree after a kmalloc failure in gtp_read_Color in drivers/input/touchscreen/gt917d/gt9xx.c.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

The Goodix GT9xx touchscreen driver for custom Linux kernels on Xiaomi daisy-o-oss and daisy-p-oss as used in Mi A2 Lite and RedMi6 pro devices through 2018-08-27 has a NULL pointer dereference in kfree after a kmalloc failure in gtp_read_Color in drivers/input/touchscreen/gt917d/gt9xx.c.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.28%

66.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Mi	Mi A2 Lite Firmware	<= 2018-08-27
Mi	Redmi 6 Firmware	<= 2018-08-27

References

https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/972Issue Tracking, Third Party Advisory
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/972Issue Tracking, Third Party Advisory

Timeline

Published: Dec 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19939?

How severe is CVE-2018-19939?

CVE-2018-19939 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19939?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-19939?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST