CVE-2023-53675

Kernel heap disclosure and corruption via SES descriptors

Published Oct 7, 2025 · Updated Oct 7, 2025

Out-of-bounds access in the Linux SCSI enclosure-services driver allows attackers to disclose or corrupt kernel memory. ses_enclosure_data_process() reads a device-supplied descriptor length before ensuring four header bytes remain, then writes a terminator without ensuring the descriptor body fits the diagnostic-page buffer. A malicious SCSI enclosure that supplies the page can expose adjacent heap bytes through sysfs, corrupt heap memory, or crash the host.

CVSS severity8.8
High
EPSS probability0.21%
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 access in the Linux SCSI enclosure-services driver allows attackers to disclose or corrupt kernel memory. ses_enclosure_data_process() reads a device-supplied descriptor length before ensuring four header bytes remain, then writes a terminator without ensuring the descriptor body fits the diagnostic-page buffer. A malicious SCSI enclosure that supplies the page can expose adjacent heap bytes through sysfs, corrupt heap memory, or crash the host.

The record

CVE
CVE-2023-53675
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1200
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <414418abc19fa4ccf730d273061a426c07a061d6
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4b8cae410472653a59e15af62c57c49b8e0a1201
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <584892fd29a41ef424a148118a3103b16b94fb8c
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <72021ae61a2bc6ca73cd593e255a10ed5f5dc5e7
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <79ec5dd5fb07ecaea2f978c2d7a9f2f3526e4d19
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <801ab13d50cf3d26170ee073ea8bb4eececb76ab
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c315560e3ef77c1d822249f1743e647dc9c9912a
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cffe09ca0555e235a42d6fa065e463c4b3d5b657

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <414418abc19fa4ccf730d273061a426c07a061d6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4b8cae410472653a59e15af62c57c49b8e0a1201; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <584892fd29a41ef424a148118a3103b16b94fb8c; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <72021ae61a2bc6ca73cd593e255a10ed5f5dc5e7; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <79ec5dd5fb07ecaea2f978c2d7a9f2f3526e4d19; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <801ab13d50cf3d26170ee073ea8bb4eececb76ab; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c315560e3ef77c1d822249f1743e647dc9c9912a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cffe09ca0555e235a42d6fa065e463c4b3d5b657

Published CVSS scores

7.1NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
8.8LinuxCVSS:3.1/AV:A/AC:L/PR:N/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.

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1200Hardware Additions

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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