Security Digest · Vulnerability record · Known exploited

CVE-2023-33106: Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset Vulnerability

Exploited in the wild (CISA KEV). Memory corruption while submitting a large list of sync points in an AUX command to the IOCTLKGSLGPUAUXCOMMAND.

CISA KEV · added 2023-12-05 CVSS 8.4 High EPSS 0.8% · p56

Should you act?

Exploited: patch now if you run it

CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • Yes, if you run Qualcomm Multiple Chipsets. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2023-12-05, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2023-12-26; treat that as the outer limit, not the target.
  • EPSS 0.8%, percentile 56: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 56% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
  • Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.

What it is

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

CISA’s summary

Multiple Qualcomm chipsets contain a use of out-of-range pointer offset vulnerability due to memory corruption in Graphics while submitting a large list of sync points in an AUX command to the IOCTL_KGSL_GPU_AUX_COMMAND.

Weakness type: CWE-823.

Product: Qualcomm Multiple Chipsets · Assigned by: qualcomm · Published: 2023-12-05

Affected and fixed versions

VendorProductAffected versions (per CVE record)
Qualcomm, Inc.SnapdragonAR8035, CSRA6620, CSRA6640, FastConnect 6200, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800, Flight RB5 5G Platform, QAM8255P, QAM8295P, QAM8650P

Severity scores

Scored byCVSSScoreVector
qualcomm3.18.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack vector: local access needed
  • Attack complexity: low
  • Privileges required: none (no login)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: added 2023-12-05; federal due date 2023-12-26. Known ransomware use: Unknown.
  • CISA required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
  • CISA SSVC assessment: exploitation active, automatable no, technical impact total.
  • FIRST EPSS (model of 2026-10-21): 0.79% probability of exploitation activity in the next 30 days; percentile 56.

Timeline

  • — Added to CISA’s Known Exploited Vulnerabilities catalog
  • — CVE record published by qualcomm
  • — CISA remediation deadline for US federal agencies
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vendor and project advisories, patches

  1. Listed in CISA KEV notes (git.codelinaro.org) git.codelinaro.org

Vulnerability records

  1. CVE.org record CVE-2023-33106 cve.org
  2. NVD entry CVE-2023-33106 nvd.nist.gov

Government

  1. CISA Known Exploited Vulnerabilities catalog entry cisa.gov

Other references from the CVE record and advisory

  1. qualcomm.com qualcomm.com

All exploited Qualcomm vulnerabilities · Today’s Security Digest