CVE-2019-10556

Local memory corruption via unchecked kernel-to-userspace copy

Published Apr 16, 2020 · Updated Aug 4, 2024

Buffer overflow in Qualcomm Snapdragon display/graphics code allows local users to corrupt memory during a kernel-to-userspace copy. The copy path fails to verify that the userspace destination is large enough before transferring kernel data, so excess bytes overrun the destination buffer. Low-privileged local access is required, and successful exploitation can expose or alter protected data or crash the affected device without user interaction.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Qualcomm Snapdragon display/graphics code allows local users to corrupt memory during a kernel-to-userspace copy. The copy path fails to verify that the userspace destination is large enough before transferring kernel data, so excess bytes overrun the destination buffer. Low-privileged local access is required, and successful exploitation can expose or alter protected data or crash the affected device without user interaction.

The record

CVE
CVE-2019-10556
Published
Apr 16, 2020
Updated
Aug 4, 2024
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-120
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=APQ8009, APQ8053, APQ8096AU, MSM8909W, MSM8917, MSM8953, Nicobar, QCN7605, QCS405, QCS605, QM215, Rennell, Saipan, SC8180X, SDA845, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM670, SDM710, SDM845, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qualcomm · Snapdragonversion=APQ8009, APQ8053, APQ8096AU, MSM8909W, MSM8917, MSM8953, Nicobar, QCN7605, QCS405, QCS605, QM215, Rennell, Saipan, SC8180X, SDA845, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM670, SDM710, SDM845, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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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