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Aqt1000 Firmware CVE-2023-33036

HIGH
NULL Pointer Dereference (CWE-476)
2024-01-02 product-security@qualcomm.com
Denial Of Service Null Pointer Dereference Qualcomm Aqt1000 Firmware Ar8035 Firmware Fastconnect 6200 Firmware Fastconnect 6800 Firmware Fastconnect 6900 Firmware Fastconnect 7800 Firmware Qam8255p Firmware Qam8295p Firmware Qam8650p Firmware Qam8775p Firmware Qca6174a Firmware Qca6310 Firmware Qca6335 Firmware Qca6391 Firmware Qca6420 Firmware Qca6421 Firmware Qca6426 Firmware Qca6430 Firmware Qca6431 Firmware Qca6436 Firmware Qca6564a Firmware Qca6564au Firmware Qca6574 Firmware Qca6574a Firmware Qca6574au Firmware Qca6595 Firmware Qca6595au Firmware Qca6696 Firmware Qca6698aq Firmware Qca6797aq Firmware Qca8081 Firmware Qca8337 Firmware Qca9377 Firmware Qcs8550 Firmware Qsm8350 Firmware Robotics Rb3 Platform Firmware Sa6145p Firmware Sa6155 Firmware Sa6155p Firmware Sa8150p Firmware Sa8155 Firmware Sa8155p Firmware Sa8255p Firmware Sa8295p Firmware Sa8540p Firmware Sa9000p Firmware Sd 675 Firmware Sd 8 Gen1 5g Firmware Sd 8cx Firmware Sd670 Firmware Sd675 Firmware Sd855 Firmware Sd865 5g Firmware Sdx55 Firmware Sdx57m Firmware Sm7250p Firmware Snapdragon 670 Mobile Platform Firmware Snapdragon 675 Mobile Platform Firmware Snapdragon 8 Gen 1 Mobile Platform Firmware Snapdragon 845 Mobile Platform Firmware Snapdragon 850 Mobile Compute Platform Firmware Snapdragon 855 Mobile Platform Firmware Snapdragon 865 5g Mobile Platform Firmware Snapdragon 870 5g Mobile Platform Firmware Snapdragon 888 5g Mobile Platform Firmware Snapdragon 8c Compute Platform Firmware Snapdragon 8cx Compute Platform Firmware Snapdragon 8cx Gen 2 5g Compute Platform Firmware Snapdragon 8cx Gen 3 Compute Platform Firmware Snapdragon Ar2 Gen 1 Platform Firmware Snapdragon X24 Lte Modem Firmware Snapdragon X50 5g Modem Rf System Firmware Snapdragon X55 5g Modem Rf System Firmware Snapdragon X65 5g Modem Rf System Firmware Snapdragon Xr2 5g Platform Firmware Ssg2115p Firmware Ssg2125p Firmware Sxr1230p Firmware Sxr2130 Firmware Sxr2230p Firmware Vision Intelligence 300 Platform Firmware Vision Intelligence 400 Platform Firmware Wcd9326 Firmware Wcd9340 Firmware Wcd9341 Firmware Wcd9370 Firmware Wcd9375 Firmware Wcd9380 Firmware Wcd9385 Firmware Wcn3950 Firmware Wcn3980 Firmware Wcn3990 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8830 Firmware Wsa8832 Firmware Wsa8835 Firmware Snapdragon 855 860 Mobile Platform Firmware Snapdragon 678 Mobile Platform Firmware Snapdragon 765 5G Mobile Platform Firmware Snapdragon 765G 5G Mobile Platform Firmware Snapdragon 768G 5G Mobile Platform Firmware
7.1
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Null pointer safety, defensive checks
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.1 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.05%.

Exploit ScenarioDerived

A local attacker with access to the system could crash the application by dereferencing a null pointer. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Permanent DOS in Hypervisor while untrusted VM without PSCI support makes a PSCI call. Rated high severity (CVSS 7.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Earlier versions of this analysis (1)
v1 Mar 28, 2026 - 19:33 CVSS 7.1

Permanent DoS via untrusted VM PSCI call in Qualcomm Hypervisor.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. Permanent DOS in Hypervisor while untrusted VM without PSCI support makes a PSCI call. Affected products include: Qualcomm Aqt1000 Firmware, Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware.

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  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.1 HIGH
AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

DescriptionCVE.org

Permanent DOS in Hypervisor while untrusted VM without PSCI support makes a PSCI call.

Executive ViewAI

Why It Matters

CVE-2023-33036 presents moderate security risk, a null pointer dereference vulnerability rated CVSS 7.1. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.0%
Top 85% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8775p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6310_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6335_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6421_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6431_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:*
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