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CVE-2018-19939

24
FAUCET Score

CVE-2018-19939 describes a NULL pointer dereference vulnerability in the Goodix GT9xx touchscreen driver (gt9xx.c) within custom Linux kernels for Xiaomi Mi A2 Lite and Redmi 6 Pro devices. This flaw, occurring after a kmalloc failure in the gtp_read_Color function, could lead to a denial-of-service condition. With a CVSS score of 7.5 (High), it can be exploited remotely with low attack complexity, requiring no user interaction, and primarily impacts system availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2018-08-27CPE matchmatch criteria
cpe:2.3:o:mi:mi_a2_lite_firmware:*:*:*:*:*:*:*:*
<= 2018-08-27CPE matchmatch criteria
cpe:2.3:o:mi:redmi_6_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.28%
Probability of exploitation in next 30 days
EPSS Percentile
67.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0128 is in the 46th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / MiCode/Xiaomi_Kernel_OpenSource/issues/972
Issue TrackingThird Party Advisory