Cyber Resilience

CVE-2023-33035

Memory Safety in Qualcomm Ar8035 Firmware

Published
03 October 2023
Modified
11 August 2025
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0011 1th percentile
Risk Priority 54 floored blend · peak EPSS

Summary

CVE-2023-33035 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Qualcomm Ar8035 Firmware. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Memory corruption while invoking callback function of AFE from ADSP.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-33087Same product: Qualcomm Apq5053-Aa
CVE-2023-33017Same product: Qualcomm Apq5053-Aa
CVE-2023-33055Same product: Qualcomm Apq5053-Aa
CVE-2023-33085Same product: Qualcomm Ar8035
CVE-2023-33024Same product: Qualcomm Ar8035
CVE-2023-28546Same product: Qualcomm Ar8035
CVE-2023-43542Same product: Qualcomm Ar8035
CVE-2024-53027Same product: Qualcomm Ar8035
CVE-2023-33072Same product: Qualcomm Ar8035
CVE-2024-23368Same product: Qualcomm Ar8035

Affected Assets

qualcomm
ar8035 firmware
all versions
qualcomm
csra6620 firmware
all versions
qualcomm
csra6640 firmware
all versions
qualcomm
wcn3991 firmware
all versions
qualcomm
wcn3998 firmware
all versions
qualcomm
wcn6750 firmware
all versions
qualcomm
qca6390 firmware
all versions
qualcomm
wcn685x-5 firmware
all versions
qualcomm
wcn685x-1 firmware
all versions
qualcomm
wcn785x-1 firmware
all versions
+134 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V5.2.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly enforce bounds checking and input validation that prevent classic buffer overflows.

ID.RA-01 partial match
prevents

Vulnerability identification processes such as code review or scanning detect classic buffer overflows before exploitation.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing unchecked buffer copies with corrected versions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.

finds

Security testing in development and acceptance can detect buffer overflows through fuzzing and static analysis, though it does not prevent them at the source.

prevents

Secure development life cycle mandates processes that can include input validation and bounds checking to prevent buffer overflows.

prevents

Application security requirements can specify input-size validation and safe buffer handling to mitigate classic buffer overflows.

prevents

Secure system architecture and engineering principles promote defensive coding patterns that reduce the likelihood of unchecked buffer copies.

References