CVE-2026-74292

Kernel disclosure and panic via unchecked enum index

Published Aug 15, 2026 · Updated Aug 15, 2026

Out-of-bounds read in the Linux Tegra210 AHUB driver allows local users to disclose kernel memory or crash systems via an ALSA control write. tegra_ahub_put_value_enum() indexes e->values[item[0]] before verifying that item[0] is smaller than the enum's item count, so a crafted index reads beyond the values array. The Tegra AHUB driver must be loaded and the local user must be able to write its ALSA mixer controls; successful triggering exposes adjacent kernel memory or causes an oops or panic without modifying kernel or device state.

CVSS severity7.1
High
EPSS probability0.13%
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 read in the Linux Tegra210 AHUB driver allows local users to disclose kernel memory or crash systems via an ALSA control write. tegra_ahub_put_value_enum() indexes e->values[item[0]] before verifying that item[0] is smaller than the enum's item count, so a crafted index reads beyond the values array. The Tegra AHUB driver must be loaded and the local user must be able to write its ALSA mixer controls; successful triggering exposes adjacent kernel memory or causes an oops or panic without modifying kernel or device state.

The record

CVE
CVE-2026-74292
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record 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=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <1d8aabb413b5638670dfd1162169edc0ba276a2e
  2. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <226d93b65f4f99b35fb7a03bdb24acb577364ebc
  3. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <2ec7d16fe21c68b0879873a2abf9aac854c96134
  4. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <4bcb23635d5059ee71f3fb89719ea14aada6fd59
  5. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <4e45e4c2015519a39c40eb575c03b77807fb5080
  6. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <964f8f9015fb117402d8d2186593397cd93388e9
  7. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <e098c9c6477dfa3cb363282100108484ceba5cc5
  8. Affected versionversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <f67d63628fe158b3a6e6b33a2b8c83ff118699d1
  9. Affected versionversion=5.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <1d8aabb413b5638670dfd1162169edc0ba276a2e; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <226d93b65f4f99b35fb7a03bdb24acb577364ebc; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <2ec7d16fe21c68b0879873a2abf9aac854c96134; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <4bcb23635d5059ee71f3fb89719ea14aada6fd59; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <4e45e4c2015519a39c40eb575c03b77807fb5080; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <964f8f9015fb117402d8d2186593397cd93388e9; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <e098c9c6477dfa3cb363282100108484ceba5cc5; version=16e1bcc2caf446fa3e1daa040b59fd6f6272a766 <f67d63628fe158b3a6e6b33a2b8c83ff118699d1; version=5.9

Published CVSS scores

7.1Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Application or System Exploitation

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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