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Vulnerability Assessment

Weakness
CWE
CWE-120
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK

1 technique across 1 tactic: Execution

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

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Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.21%.
Exploit ScenarioDerived

A remote attacker could overflow a buffer to corrupt adjacent memory by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Memory corruption in Data Modem when a non-standard SDP body, during a VOLTE call. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Earlier versions of this analysis (1)
v1 Mar 28, 2026 - 19:33 CVSS 9.8

Baseband RCE in Qualcomm modem via VoLTE.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Memory corruption in Data Modem when a non-standard SDP body, during a VOLTE call. Affected products include: Qualcomm Ar8035 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Qca8081 Firmware, Qualcomm Qca8337 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Memory corruption in Data Modem when a non-standard SDP body, during a VOLTE call.

Executive ViewAI

Why It Matters

CVE-2023-33025 presents critical security risk, a buffer overflow vulnerability rated CVSS 9.8. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Enable ASLR and DEP where available; (2) Implement network segmentation; (3) Monitor for exploitation indicators.

Threat Intelligence Overview

EPSS Score
0.2%
Top 57% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

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 CRITICAL
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
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

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Affected Products (CPE)CVE.org

cpe:2.3:o:qualcomm:ar8035_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6700_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca8081_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca8337_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm4490_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcn6024_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcn9024_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs4490_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm4450_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_680_4g_mobile_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_685_4g_mobile_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_x65_5g_modem-rf_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:snapdragon_x70_modem-rf_system_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9375_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3988_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*
+ 4 more

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Same weakness CWE-120 – Classic Buffer Overflow

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CVE-2016-6366 HIGH POC
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CVE-2017-15222 CRITICAL POC
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Same technique Buffer Overflow

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CVE-2015-5119 CRITICAL POC
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CVE-2015-3113 CRITICAL POC
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CVE-2011-2462 CRITICAL POC
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CVE-2009-0927 HIGH POC
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References

Advisories & patches
ADVISORY https://www.qualcomm.com/company/product-security/bulletins/january-2024-bulletin

Search Externally

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