CVE-2026-93064Hinoki check available

Key-byte disclosure via off-by-one dump sanitization

Published Sep 17, 2026 · Updated Sep 17, 2026

Information disclosure in Linux Foundation Linux Kernel iwlwifi allows local users to read a key byte from transmit-FIFO dumps. The iwl_mvm_frob_txf_key_iter() function starts overwriting a matched key one byte too early, leaving its final byte unredacted. Exposure requires the old transmit API and access to a dump containing a matched key; the established disclosure is a key fragment, not a complete key.

CVSS severity2.3
Low
EPSS probability0.17%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Information disclosure in Linux Foundation Linux Kernel iwlwifi allows local users to read a key byte from transmit-FIFO dumps. The iwl_mvm_frob_txf_key_iter() function starts overwriting a matched key one byte too early, leaving its final byte unredacted. Exposure requires the old transmit API and access to a dump containing a matched key; the established disclosure is a key fragment, not a complete key.

The record

CVE
CVE-2026-93064
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
Linux Foundation
Product
Linux Kernel
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2026Record 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=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <1af000d75b1c96f7cbdf23f14d0ee1c51b12f8e6
  2. Affected versionversion=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <2a77cb320e3998afa5e1ed0e95908b226aae9ed6
  3. Affected versionversion=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <4c582ed61325135f841ca93667d7551a8e31e58d
  4. Affected versionversion=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <5bcc933c6d47d795dab27458b9001c2d97130fd3
  5. Affected versionversion=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <c9d8641aea01c3b2516483e128e1f557cfbcf44a
  6. Affected versionversion=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <f6a6c01cbc046f68e6916a7e047a1bc881c8c9ab
  7. Affected versionversion=5.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Linux Foundation · Linux Kernelversion=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <1af000d75b1c96f7cbdf23f14d0ee1c51b12f8e6; version=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <2a77cb320e3998afa5e1ed0e95908b226aae9ed6; version=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <4c582ed61325135f841ca93667d7551a8e31e58d; version=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <5bcc933c6d47d795dab27458b9001c2d97130fd3; version=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <c9d8641aea01c3b2516483e128e1f557cfbcf44a; version=12d60c1efc29e19f4dc0dc70cd48ce097fce6447 <f6a6c01cbc046f68e6916a7e047a1bc881c8c9ab; version=5.16

Published CVSS scores

2.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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