CVE-2023-33025Network attack vector

Memory corruption via oversized SDP body

Published Jan 2, 2024 · Updated Apr 17, 2025

Buffer overflow in Qualcomm Snapdragon Data Modem allows remote attackers to corrupt memory via a non-standard SDP body during a VoLTE call. The closed-source modem component copies an SDP body without checking its input size, allowing an oversized body to overwrite memory. No authentication or user interaction is required, but the target must receive the crafted SDP within a VoLTE call; Qualcomm has not disclosed the affected function or buffer.

CVSS severity9.8
Critical
EPSS probability0.39%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Qualcomm Snapdragon Data Modem allows remote attackers to corrupt memory via a non-standard SDP body during a VoLTE call. The closed-source modem component copies an SDP body without checking its input size, allowing an oversized body to overwrite memory. No authentication or user interaction is required, but the target must receive the crafted SDP within a VoLTE call; Qualcomm has not disclosed the affected function or buffer.

The record

CVE
CVE-2023-33025
Published
Jan 2, 2024
Updated
Apr 17, 2025
Vendor
Qualcomm
Product
Snapdragon
Classifications
CWE-120
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=AR8035
  2. Affected versionversion=FastConnect 6700
  3. Affected versionversion=FastConnect 6900
  4. Affected versionversion=QCA8081
  5. Affected versionversion=QCA8337
  6. Affected versionversion=QCM4490
  7. Affected versionversion=QCN6024
  8. Affected versionversion=QCN9024
  9. Affected versionversion=QCS4490
  10. Affected versionversion=SM4450
  11. Affected versionversion=Snapdragon 680 4G Mobile Platform
  12. Affected versionversion=Snapdragon 685 4G Mobile Platform (SM6225-AD)
  13. Affected versionversion=Snapdragon X65 5G Modem-RF System
  14. Affected versionversion=Snapdragon X70 Modem-RF System
  15. Affected versionversion=WCD9370
  16. Affected versionversion=WCD9375
  17. Affected versionversion=WCD9380
  18. Affected versionversion=WCN3950
  19. Affected versionversion=WCN3988
  20. Affected versionversion=WSA8810
  21. Affected versionversion=WSA8815
  22. Affected versionversion=WSA8830
  23. Affected versionversion=WSA8832
  24. Affected versionversion=WSA8835

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · Snapdragonversion=AR8035; version=FastConnect 6700; version=FastConnect 6900; version=QCA8081; version=QCA8337; version=QCM4490; version=QCN6024; version=QCN9024; version=QCS4490; version=SM4450; version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform (SM6225-AD); version=Snapdragon X65 5G Modem-RF System; version=Snapdragon X70 Modem-RF System; version=WCD9370; version=WCD9375; version=WCD9380; version=WCN3950; version=WCN3988; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835

Published CVSS scores

9.8Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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