CVE-2024-35994

Device hard reset via split QSEECOM buffers

Published May 20, 2024 · Updated Aug 5, 2026

Denial of service in Linux 6.7 through 6.8.8 and 6.9 release candidates allows local users to hard-reset Qualcomm devices. The uefisecapp path allocates request and response structures separately even though QSEECOM APP_SEND firmware expects both inside one contiguous, properly aligned DMA region. The path requires local access and compatible Qualcomm hardware; failures produce I/O errors, rejected SCM calls, or a device hard reset.

CVSS severity5.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Linux 6.7 through 6.8.8 and 6.9 release candidates allows local users to hard-reset Qualcomm devices. The uefisecapp path allocates request and response structures separately even though QSEECOM APP_SEND firmware expects both inside one contiguous, properly aligned DMA region. The path requires local access and compatible Qualcomm hardware; failures produce I/O errors, rejected SCM calls, or a device hard reset.

The record

CVE
CVE-2024-35994
Published
May 20, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=6.7
  2. Affected versionversion=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <dd22b34fb53cb04b13b2f5eee5c9200bb091fc88
  3. Affected versionversion=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <ed09f81eeaa8f9265e1787282cb283f10285c259

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <dd22b34fb53cb04b13b2f5eee5c9200bb091fc88; version=759e7a2b62eb3ef3c93ffeb5cca788a09627d7d9 <ed09f81eeaa8f9265e1787282cb283f10285c259

Published CVSS scores

5.5NVDCVSS: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.

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

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-401Missing Release of Memory after Effective Lifetime
T1499.004Endpoint Denial of Service: Application 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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