CVE-2023-53383

Kernel panic via interleaved GIC transactions

Published Sep 18, 2025 · Updated Sep 18, 2025

Linux on affected NVIDIA T241 servers allows local users to trigger kernel panics through inter-socket GIC transactions. On systems with more than two interconnected T241 chips, the fabric can interleave multi-transfer AXI4 Stream packets from different GICs, corrupting GIC state. The condition is local and hardware-specific; single- and dual-socket systems are unaffected, and the consequence is an availability loss or other unexpected kernel behavior.

CVSS severity5.5
Medium
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

Linux on affected NVIDIA T241 servers allows local users to trigger kernel panics through inter-socket GIC transactions. On systems with more than two interconnected T241 chips, the fabric can interleave multi-transfer AXI4 Stream packets from different GICs, corrupting GIC state. The condition is local and hardware-specific; single- and dual-socket systems are unaffected, and the consequence is an availability loss or other unexpected kernel behavior.

The record

CVE
CVE-2023-53383
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <35727af2b15d98a2dd2811d631d3a3886111312e
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <867a4f6cf1a8f511c06e131477988b3b3e7a0633
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <86ba4f7b9f949e4c4bcb425f2a1ce490fea30df0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <35727af2b15d98a2dd2811d631d3a3886111312e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <867a4f6cf1a8f511c06e131477988b3b3e7a0633; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <86ba4f7b9f949e4c4bcb425f2a1ce490fea30df0

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.

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
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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