CVE-2019-14023

Memory corruption via unterminated HLOS string copy

Published Jan 21, 2020 · Updated Aug 5, 2024

Memory corruption in the Qualcomm Snapdragon kernel allows local users to corrupt memory by supplying non-NUL-terminated HLOS data. The kernel copies HLOS-supplied string data without first validating that the input has a terminating NUL byte, leaving the copy without a validated termination boundary. Exploitation requires low-privileged local execution on an affected chipset; Qualcomm has not published the exact kernel function or a narrower operational consequence.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the Qualcomm Snapdragon kernel allows local users to corrupt memory by supplying non-NUL-terminated HLOS data. The kernel copies HLOS-supplied string data without first validating that the input has a terminating NUL byte, leaving the copy without a validated termination boundary. Exploitation requires low-privileged local execution on an affected chipset; Qualcomm has not published the exact kernel function or a narrower operational consequence.

The record

CVE
CVE-2019-14023
Published
Jan 21, 2020
Updated
Aug 5, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=MDM9607, Nicobar, Rennell, SA6155P, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=MDM9607, Nicobar, Rennell, SA6155P, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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