CVE-2023-53575: wifi: iwlwifi: mvm: fix potential array out of bounds access
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix potential array out of bounds access
Account for IWL_SEC_WEP_KEY_OFFSET when needed while verifying
key_len size in iwl_mvm_sec_key_add().
Security readout for executives and security teams
Plain-English summary
This is a Linux kernel Wi-Fi driver flaw in iwlwifi. The bug could let code read or write outside an expected array when adding a security key. The source does not provide severity, CVSS, exploit evidence, or business impact details.
Executive priority
Monitor and patch through normal kernel update channels unless your environment heavily depends on Linux endpoints with Intel Wi-Fi. No source evidence supports emergency response or active exploitation.
Technical view
The issue is in iwl_mvm_sec_key_add(), where key_len validation did not account for IWL_SEC_WEP_KEY_OFFSET when required. Linux resolved it with upstream stable commits. The available record identifies affected Linux kernel versions, but distribution backport status is not provided.
Likely exposure
Exposure is most likely on Linux systems using the iwlwifi wireless driver with affected kernel builds. Server fleets without Intel Wi-Fi hardware or without the driver enabled are less likely exposed, but version-only assessment is insufficient.
Exploitation context
The provided sources do not show active exploitation, public exploit availability, KEV listing, CVSS score, or required attack conditions. Treat exploitability as unconfirmed from this bundle.
Researcher notes
Key uncertainty is exploitability. The record describes a bounds-checking fix but provides no CVSS, CWE, trigger conditions, privilege requirements, or attacker proximity. Validate against upstream commits and downstream vendor backports.
Mitigation direction
Apply vendor kernel updates that include the referenced upstream stable fixes.
Check Linux distribution advisories for backported fixes and affected package versions.
Prioritize laptops, workstations, and appliances using Intel iwlwifi wireless hardware.
Avoid direct wrangler-style assumptions: verify vendor guidance before operational changes.
Validation and detection
Inventory Linux systems running affected kernel versions or vendor-derived builds.
Identify hosts with iwlwifi built, installed, or loaded.
Check kernel package changelogs for the referenced stable commit fixes.
Review vendor advisories for distro-specific fixed versions and backport notes.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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CVE-2023-53575 mapping review
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0CVSS vectors
3Timeline events
0ADP providers
3Source links
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
CVE publishedCVE Program
The CVE record was published.
Oct 4, 2025, 15:17 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.