CVE-2023-54325

Kernel-memory disclosure and crash via rounded key length

Published Dec 30, 2025 · Updated Dec 30, 2025

Out-of-bounds read in the QAT crypto driver in Linux 5.11 through 6.2 allows local users to disclose kernel memory or crash the system. Request setup rounds a 24-byte AES-192 key length to 32 before memcpy reads the original key buffer, overreading eight adjacent bytes. Exploitation requires local access and QAT GEN4 hardware; the read exposes kernel heap data to accelerator firmware or faults and oopses the kernel.

CVSS severity7.1
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the QAT crypto driver in Linux 5.11 through 6.2 allows local users to disclose kernel memory or crash the system. Request setup rounds a 24-byte AES-192 key length to 32 before memcpy reads the original key buffer, overreading eight adjacent bytes. Exploitation requires local access and QAT GEN4 hardware; the read exposes kernel heap data to accelerator firmware or faults and oopses the kernel.

The record

CVE
CVE-2023-54325
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record 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=5.11
  2. Affected versionversion=67916c9516893528ecce060ada1f58af0ce33d93 <2b1501f058245573a3aa6bf234d205dde1196184
  3. Affected versionversion=67916c9516893528ecce060ada1f58af0ce33d93 <7697139d5dfd491f4c495a914a1dd68f6e827a0f
  4. Affected versionversion=67916c9516893528ecce060ada1f58af0ce33d93 <dc3809f390357c8992f0a23083da934a20fef9af
  5. Affected versionversion=67916c9516893528ecce060ada1f58af0ce33d93 <f6044cc3030e139f60c281386f28bda6e3049d66

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=67916c9516893528ecce060ada1f58af0ce33d93 <2b1501f058245573a3aa6bf234d205dde1196184; version=67916c9516893528ecce060ada1f58af0ce33d93 <7697139d5dfd491f4c495a914a1dd68f6e827a0f; version=67916c9516893528ecce060ada1f58af0ce33d93 <dc3809f390357c8992f0a23083da934a20fef9af; version=67916c9516893528ecce060ada1f58af0ce33d93 <f6044cc3030e139f60c281386f28bda6e3049d66

Published CVSS scores

7.1LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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

T1499.004Application or System Exploitation

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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