CVE-2023-53575

Memory disclosure or crash via offset WEP copy

Published Oct 4, 2025 · Updated Oct 4, 2025

Out-of-bounds access in Linux kernel 6.2 through 6.4.6 allows local users to read kernel memory or crash the system during WEP key setup. The iwl_mvm_sec_key_add function checks a WEP key length against the entire destination array without subtracting IWL_SEC_WEP_KEY_OFFSET, permitting the later offset copy to cross the array boundary. Reachability requires the iwlwifi MVM driver and local low-privileged access; reported impact is limited to memory disclosure or a system crash.

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 access in Linux kernel 6.2 through 6.4.6 allows local users to read kernel memory or crash the system during WEP key setup. The iwl_mvm_sec_key_add function checks a WEP key length against the entire destination array without subtracting IWL_SEC_WEP_KEY_OFFSET, permitting the later offset copy to cross the array boundary. Reachability requires the iwlwifi MVM driver and local low-privileged access; reported impact is limited to memory disclosure or a system crash.

The record

CVE
CVE-2023-53575
Published
Oct 4, 2025
Updated
Oct 4, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 4, 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?

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  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <133b1cd4d98bb8b272335c8e6b0e0c399c0b2ffa
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <637452360ecde9ac972d19416e9606529576b302

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <133b1cd4d98bb8b272335c8e6b0e0c399c0b2ffa; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <637452360ecde9ac972d19416e9606529576b302

Published CVSS scores

7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
6.1SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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

CWE-125Out-of-bounds Read

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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