CVE-2023-28577

Kernel memory corruption via concurrent buffer release

Published Aug 8, 2023 · Updated Aug 2, 2024

Use-after-free in Qualcomm Snapdragon camera request management allows local users with high privileges to corrupt kernel memory through a race. CAM_REQ_MGR_RELEASE_BUF can unmap a buffer's kernel virtual address while another thread still uses the address returned by cam_mem_get_cpu_buf. High local privileges and a concurrent release are required; successful exploitation can compromise confidentiality, integrity, and availability.

CVSS severity7.8
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Use-after-free in Qualcomm Snapdragon camera request management allows local users with high privileges to corrupt kernel memory through a race. CAM_REQ_MGR_RELEASE_BUF can unmap a buffer's kernel virtual address while another thread still uses the address returned by cam_mem_get_cpu_buf. High local privileges and a concurrent release are required; successful exploitation can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2023-28577
Published
Aug 8, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
QCN9074 Firmware
Classifications
CWE-416
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0 <=*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Qualcomm · QCN9074 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCN3660B Firmwareversion=0 <=*
Qualcomm · SW5100 Firmwareversion=0 <=*
Qualcomm · SW5100P Firmwareversion=0 <=*
Qualcomm · QCS610 Firmwareversion=0 <=*
Qualcomm · WSA8810 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6426 Firmwareversion=0 <=*
Qualcomm · FastConnect 7800 Firmwareversion=0 <=*
Qualcomm · WCN3680B Firmwareversion=0 <=*
Qualcomm · QCS410 Firmwareversion=0 <=*
Qualcomm · Snapdragonversion=FastConnect 6800; version=FastConnect 6900; version=FastConnect 7800; version=QCA6391; version=QCA6426; version=QCA6436; version=QCN9074; version=QCS410; version=QCS610; version=SD865 5G; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform (SM8250-AB); version=Snapdragon 870 5G Mobile Platform (SM8250-AC); version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon XR2 5G Platform; version=SW5100; version=SW5100P; version=SXR2130; version=WCD9341; version=WCD9370; version=WCD9380; version=WCN3660B; version=WCN3680B; version=WCN3950; version=WCN3980; version=WCN3988; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835
Qualcomm · Qualcomm Snapdragon 865 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 8 Gen 1 Mobile Platform Firmwareversion=0 <=*
Qualcomm · FastConnect 6900 Firmwareversion=0 <=*
Qualcomm · WCD9370 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9341 Firmwareversion=0 <=*
Qualcomm · Snapdragon X55 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · WCN3988 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6436 Firmwareversion=0 <=*
Qualcomm · WCD9380 Firmwareversion=0 <=*
Qualcomm · Qualcomm SD865 5G Firmwareversion=0 <=*
Qualcomm · WCN3950 Firmwareversion=0 <=*
Qualcomm · WSA8830 Firmwareversion=0 <=*
Qualcomm · QCA6391 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon XR2 5G Platform Firmwareversion=0 <=*
Qualcomm · WCN3980 Firmwareversion=0 <=*
Qualcomm · WSA8835 Firmwareversion=0 <=*
Qualcomm · FastConnect 6800 Firmwareversion=0 <=*
Qualcomm · SXR2130 Firmwareversion=0 <=*
Qualcomm · WSA8815 Firmwareversion=0 <=*

Published CVSS scores

6.7Qualcomm, Inc.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.8NVDCVSS: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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

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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