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Vulnerability record · CVE-2023-33106 · published 5 December 2023

CVE-2023-33106: Qualcomm GPU AUX Command Sync Point Memory Corruption

Qualcomm · Ar8035 Firmware

CVE-2023-33106 is a memory corruption flaw in Qualcomm chipsets triggered when a large list of sync points is submitted in an AUX command to the IOCTL_KGSL_GPU_AUX_COMMAND. It is classified as an out-of-range pointer offset and memory buffer overflow, and it affects a broad set of Qualcomm firmware products. The flaw matters because it is listed in CISA's Known Exploited Vulnerabilities catalog, indicating real-world exploitation.

7.8 CVSS 3.1 High CISA KEV since 5 Dec 2023 EPSS 0.92% · top 41.1% CWE-823 · CWE-823CWE-119 · Memory buffer overflow
7.8CVSS 3.1 base score
0.92%EPSS exploitation probability, 30 days
YesIn CISA KEV, fix deadline passed
150Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Memory corruption while submitting a large list of sync points in an AUX command to the IOCTL_KGSL_GPU_AUX_COMMAND.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 17 September 2026. Confidence: high.

high priorityThe vulnerability is in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation, though local access and low privileges are required.

What it is

CVE-2023-33106 is a memory corruption flaw in Qualcomm chipsets triggered when a large list of sync points is submitted in an AUX command to the IOCTL_KGSL_GPU_AUX_COMMAND. It is classified as an out-of-range pointer offset and memory buffer overflow, and it affects a broad set of Qualcomm firmware products. The flaw matters because it is listed in CISA's Known Exploited Vulnerabilities catalog, indicating real-world exploitation.

Impact

An attacker who can reach the vulnerable IOCTL can corrupt memory, potentially leading to code execution or privilege escalation within the affected component. The CVSS vector indicates high impact to confidentiality, integrity, and availability.

Attack surface

The vulnerability is reached locally through the IOCTL_KGSL_GPU_AUX_COMMAND interface, requiring low privileges and no user interaction. It is not remotely exploitable over a network based on the provided vector.

Exploitation

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2023-12-05 with a remediation due date of 2023-12-26, confirming active exploitation. EPSS gives a 30-day exploitation probability of 0.00924 (58.7th percentile), and no ransomware campaign use is documented.

What to do

  • Apply the Qualcomm December 2023 security bulletin patches for all affected chipsets.
  • If patching is not immediately possible, follow vendor mitigations or discontinue use of affected products per CISA guidance.
  • Restrict local access to the GPU AUX command interface to trusted processes and users.
  • Monitor for and block untrusted applications that attempt to submit large sync point lists to the IOCTL.

Detection

  • Monitor system logs for abnormal IOCTL_KGSL_GPU_AUX_COMMAND calls with unusually large sync point lists.
  • Use endpoint detection to flag processes attempting to access GPU driver interfaces with unexpected parameters.
  • Track CISA KEV remediation deadlines and verify patch status across all affected Qualcomm firmware products.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.

Exploitation in the wild

CISA added CVE-2023-33106 to the Known Exploited Vulnerabilities catalog on 5 December 2023 as "Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset Vulnerability". Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. Federal deadline 26 December 2023.

Affected products

150 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.qualcomm.com/company/product-security/bulletins/december-2023-bulletin PatchVendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/december-2023-bulletin PatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-33106 US Government Resource

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Source: NIST National Vulnerability Database (record CVE-2023-33106), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.