CVE-2026-92496

Out-of-bounds read via unchecked firmware-event header

Published Sep 17, 2026 · Updated Sep 17, 2026

Buffer overread in the Linux ath11k Wi-Fi driver allows attackers to read beyond a firmware buffer via a truncated WMI event. The ath11k_wmi_tlv_op_rx() function dereferences skb->data as a wmi_cmd_hdr without checking that the buffer contains a complete header. The affected path processes device-firmware events; attacker control of those events and a resulting data-disclosure path are not documented.

CVSS severity3.3
Low
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overread in the Linux ath11k Wi-Fi driver allows attackers to read beyond a firmware buffer via a truncated WMI event. The ath11k_wmi_tlv_op_rx() function dereferences skb->data as a wmi_cmd_hdr without checking that the buffer contains a complete header. The affected path processes device-firmware events; attacker control of those events and a resulting data-disclosure path are not documented.

The record

CVE
CVE-2026-92496
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

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=5.6
  2. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <20166fd9a4ad15d7eccc63c9dc99680aea6558ef
  3. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <2677fc48dd10dc08cdec99c2692d50fe5f48dcbf
  4. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <71690d26c1415e816158b45ee354367244c50d4c
  5. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <72a5e45f606ec454ef556a68ffd92e06b0677f44
  6. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <9652e7e23137538169f60323300cae3413475685
  7. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1
  8. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <9ef9dd30058cc9223c72f711dca1a28a5947d0c5
  9. Affected versionversion=d5c65159f2895379e11ca13f62feabe93278985d <f9726f6d97dca94ab14739c8b632301a940a7e8f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.6; version=d5c65159f2895379e11ca13f62feabe93278985d <20166fd9a4ad15d7eccc63c9dc99680aea6558ef; version=d5c65159f2895379e11ca13f62feabe93278985d <2677fc48dd10dc08cdec99c2692d50fe5f48dcbf; version=d5c65159f2895379e11ca13f62feabe93278985d <71690d26c1415e816158b45ee354367244c50d4c; version=d5c65159f2895379e11ca13f62feabe93278985d <72a5e45f606ec454ef556a68ffd92e06b0677f44; version=d5c65159f2895379e11ca13f62feabe93278985d <9652e7e23137538169f60323300cae3413475685; version=d5c65159f2895379e11ca13f62feabe93278985d <9ddbc95dac167e3f2d0e3859e6ce022ae0184fc1; version=d5c65159f2895379e11ca13f62feabe93278985d <9ef9dd30058cc9223c72f711dca1a28a5947d0c5; version=d5c65159f2895379e11ca13f62feabe93278985d <f9726f6d97dca94ab14739c8b632301a940a7e8f

Published CVSS scores

10.0TenableAV:N/AC:L/Au:N/C:C/I:C/A:C
3.3Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
3.3SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
8.4TenableCVSS:3.1/AV:L/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.

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
Privilegesauthenticated
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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