CVE-2023-52608

Service interruption via misassociated late SCMI reply

Published Mar 13, 2024 · Updated May 11, 2026

Race condition in Linux kernel ARM SCMI mailbox handling allows local users to interrupt service through a late platform reply. The A2P completion handler reads a shared-memory header after a timed-out command, and a new request can overwrite that area so a spurious late-reply IRQ is matched to the new transaction. Reachability requires an ARM SCMI mailbox or SMT channel, a command timeout, and precise late-reply timing; the resulting transaction confusion interrupts service.

CVSS severity4.7
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Linux kernel ARM SCMI mailbox handling allows local users to interrupt service through a late platform reply. The A2P completion handler reads a shared-memory header after a timed-out command, and a new request can overwrite that area so a spurious late-reply IRQ is matched to the new transaction. Reachability requires an ARM SCMI mailbox or SMT channel, a command timeout, and precise late-reply timing; the resulting transaction confusion interrupts service.

The record

CVE
CVE-2023-52608
Published
Mar 13, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 13, 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=5.7
  2. Affected versionversion=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <12dc4217f16551d6dee9cbefc23fdb5659558cda
  3. Affected versionversion=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <437a310b22244d4e0b78665c3042e5d1c0f45306
  4. Affected versionversion=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <614cc65032dcb0b64d23f5c5e338a8a04b12be5d
  5. Affected versionversion=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <7f95f6997f4fdd17abec3200cae45420a5489350
  6. Affected versionversion=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <9b5e1b93c83ee5fc9f5d7bd2d45b421bd87774a2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.7; version=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <12dc4217f16551d6dee9cbefc23fdb5659558cda; version=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <437a310b22244d4e0b78665c3042e5d1c0f45306; version=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <614cc65032dcb0b64d23f5c5e338a8a04b12be5d; version=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <7f95f6997f4fdd17abec3200cae45420a5489350; version=5c8a47a5a91d4d6e185f758d61997613d9c5d6ac <9b5e1b93c83ee5fc9f5d7bd2d45b421bd87774a2

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/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.

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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1499Endpoint Denial of Service

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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