CVE-2023-52561

Local service interruption via unreserved splash framebuffer

Published Mar 2, 2024 · Updated May 11, 2026

Kernel panic in affected Linux kernels on Qualcomm DB845c systems allows local users to interrupt service through framebuffer access. The sdm845-db845c device tree fails to reserve the bootloader's continuous-splash framebuffer, allowing the arm SMMU to access that memory and raise an unhandled context fault. Reachability requires an arm64 DB845c system using the bootloader-provided splash region; the reported consequence is a kernel panic with no confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Kernel panic in affected Linux kernels on Qualcomm DB845c systems allows local users to interrupt service through framebuffer access. The sdm845-db845c device tree fails to reserve the bootloader's continuous-splash framebuffer, allowing the arm SMMU to access that memory and raise an unhandled context fault. Reachability requires an arm64 DB845c system using the bootloader-provided splash region; the reported consequence is a kernel panic with no confidentiality or integrity impact.

The record

CVE
CVE-2023-52561
Published
Mar 2, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1529
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 2, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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=3f72e2d3e682a48cad535b50c69cdc2f2f23315f <110e70fccce4f22b53986ae797d665ffb1950aa6
  2. Affected versionversion=3f72e2d3e682a48cad535b50c69cdc2f2f23315f <82dacd0ca0d9640723824026d6fdf773c02de1d2
  3. Affected versionversion=3f72e2d3e682a48cad535b50c69cdc2f2f23315f <dc1ab6577475b0460ba4261cd9caec37bd62ca0b
  4. Affected versionversion=5.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3f72e2d3e682a48cad535b50c69cdc2f2f23315f <110e70fccce4f22b53986ae797d665ffb1950aa6; version=3f72e2d3e682a48cad535b50c69cdc2f2f23315f <82dacd0ca0d9640723824026d6fdf773c02de1d2; version=3f72e2d3e682a48cad535b50c69cdc2f2f23315f <dc1ab6577475b0460ba4261cd9caec37bd62ca0b; version=5.3

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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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

T1529System Shutdown/Reboot

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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