CVE-2023-21633

Memory corruption via malformed IMS registration request

Published Jul 4, 2023 · Updated Aug 2, 2024

Memory corruption in Qualcomm Linux firmware allows local users with high privileges to corrupt memory through a crafted IMS registration request. The QcRilRequestImsRegisterMultiIdentityMessage handler corrupts memory while processing request data, but Qualcomm has not disclosed the faulty buffer operation. The documented gate is local, high-privilege access; Qualcomm has not specified whether successful exploitation crashes the component or executes code.

CVSS severity6.7
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Memory corruption in Qualcomm Linux firmware allows local users with high privileges to corrupt memory through a crafted IMS registration request. The QcRilRequestImsRegisterMultiIdentityMessage handler corrupts memory while processing request data, but Qualcomm has not disclosed the faulty buffer operation. The documented gate is local, high-privilege access; Qualcomm has not specified whether successful exploitation crashes the component or executes code.

The record

CVE
CVE-2023-21633
Published
Jul 4, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
SA8155P Firmware
Classifications
CWE-119
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Qualcomm · SA8155P Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 750G 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm WCN3660B Firmwareversion=0 <=*
Qualcomm · WCD9326 Firmwareversion=0 <=*
Qualcomm · SA8155 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 710 Mobile Platform Firmwareversion=0 <=*
Qualcomm · QCA6698AQ Firmwareversion=0 <=*
Qualcomm · SW5100 Firmwareversion=0 <=*
Qualcomm · SW5100P Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6431 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9375 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 820 Automotive Platform Firmwareversion=0 <=*
Qualcomm · QCS610 Firmwareversion=0 <=*
Qualcomm · Snapdragon X50 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · WSA8810 Firmwareversion=0 <=*
Qualcomm · Snapdragon 670 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6426 Firmwareversion=0 <=*
Qualcomm · SA6150P Firmwareversion=0 <=*
Qualcomm · WCN3680B Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595 Firmwareversion=0 <=*
Qualcomm · SA8195P Firmwareversion=0 <=*
Qualcomm · Snapdragonversion=APQ8064AU; version=AQT1000; version=FastConnect 6200; version=FastConnect 6800; version=FastConnect 6900; version=MSM8996AU; version=QAM8295P; version=QCA6391; version=QCA6420; version=QCA6421; version=QCA6426; version=QCA6430; version=QCA6431; version=QCA6436; version=QCA6564; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595; version=QCA6595AU; version=QCA6696; version=QCA6698AQ; version=QCS610; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=SA6145P; version=SA6150P; version=SA6155; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155; version=SA8155P; version=SA8195P; version=SA8295P; version=SD670; version=SD675; version=SD 675; version=SD730; version=SD835; version=SD855; version=SD865 5G; version=SDX55; version=SM6250; version=SM6250P; version=SM7250P; version=Snapdragon 670 Mobile Platform; version=Snapdragon 675 Mobile Platform; version=Snapdragon 678 Mobile Platform (SM6150-AC); version=Snapdragon 690 5G Mobile Platform; version=Snapdragon 710 Mobile Platform; version=Snapdragon 720G Mobile Platform; version=Snapdragon 730G Mobile Platform (SM7150-AB); version=Snapdragon 730 Mobile Platform (SM7150-AA); version=Snapdragon 732G Mobile Platform (SM7150-AC); version=Snapdragon 750G 5G Mobile Platform; version=Snapdragon 765 5G Mobile Platform (SM7250-AA); version=Snapdragon 765G 5G Mobile Platform (SM7250-AB); version=Snapdragon 768G 5G Mobile Platform (SM7250-AC); version=Snapdragon 820 Automotive Platform; version=Snapdragon 855+/860 Mobile Platform (SM8150-AC); version=Snapdragon 855 Mobile Platform; version=Snapdragon 865 5G Mobile Platform; version=Snapdragon 865+ 5G Mobile Platform (SM8250-AB); version=Snapdragon 870 5G Mobile Platform (SM8250-AC); version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon Wear 4100+ Platform; version=Snapdragon X50 5G Modem-RF System; version=Snapdragon X55 5G Modem-RF System; version=Snapdragon XR1 Platform; version=Snapdragon XR2 5G Platform; version=SW5100; version=SW5100P; version=SXR1120; version=SXR2130; version=Vision Intelligence 400 Platform; version=WCD9326; version=WCD9335; version=WCD9341; version=WCD9370; version=WCD9371; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3610; version=WCN3660B; version=WCN3680B; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835
Qualcomm · SA6155P Firmwareversion=0 <=*
Qualcomm · Qualcomm SD835 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 865 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm SM6250P Firmwareversion=0 <=*
Qualcomm · Qualcomm SM6250 Firmwareversion=0 <=*
Qualcomm · QCA6421 Firmwareversion=0 <=*
Qualcomm · Qualcomm SD855 Firmwareversion=0 <=*
Qualcomm · SA8295P Firmwareversion=0 <=*
Qualcomm · SA8145P Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564A Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC1 Platform Firmwareversion=0 <=*
Qualcomm · FastConnect 6900 Firmwareversion=0 <=*
Qualcomm · WCD9370 Firmwareversion=0 <=*
Qualcomm · SA8150P Firmwareversion=0 <=*
Qualcomm · QCA6420 Firmwareversion=0 <=*
Qualcomm · Qualcomm SM7250P Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9341 Firmwareversion=0 <=*
Qualcomm · Snapdragon X55 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564AU Firmwareversion=0 <=*
Qualcomm · WCN3988 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 855 Mobile Platform Firmwareversion=0 <=*
Qualcomm · Vision Intelligence 400 Platform Firmwareversion=0 <=*
Qualcomm · QAM8295P Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6436 Firmwareversion=0 <=*
Qualcomm · QCA6574AU Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9371 Firmwareversion=0 <=*
Qualcomm · WCD9380 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=0 <=*
Qualcomm · APQ8064AU Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6430 Firmwareversion=0 <=*
Qualcomm · Qualcomm SD730 Firmwareversion=0 <=*
Qualcomm · MSM8996AU Firmwareversion=0 <=*
Qualcomm · SA6145P Firmwareversion=0 <=*
Qualcomm · Qualcomm WCN3990 Firmwareversion=0 <=*
Qualcomm · Qualcomm SD865 5G Firmwareversion=0 <=*
Qualcomm · SXR1120 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCN3610 Firmwareversion=0 <=*
Qualcomm · Snapdragon XR1 Platform Firmwareversion=0 <=*
Qualcomm · FastConnect 6200 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 720G Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 675 Mobile Platform Firmwareversion=0 <=*
Qualcomm · SD 675 Firmwareversion=0 <=*
Qualcomm · AQT1000 Firmwareversion=0 <=*
Qualcomm · SA6155 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 690 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm SDX55 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 670 Mobile Platform Firmwareversion=0 <=*
Qualcomm · WCN3950 Firmwareversion=0 <=*
Qualcomm · Snapdragon 675 Firmwareversion=0 <=*
Qualcomm · WSA8830 Firmwareversion=0 <=*
Qualcomm · QCA6391 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon XR2 5G Platform Firmwareversion=0 <=*
Qualcomm · WCD9385 Firmwareversion=0 <=*
Qualcomm · WCN3980 Firmwareversion=0 <=*
Qualcomm · WSA8835 Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC3 Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9335 Firmwareversion=0 <=*
Qualcomm · FastConnect 6800 Firmwareversion=0 <=*
Qualcomm · SXR2130 Firmwareversion=0 <=*
Qualcomm · QCA6696 Firmwareversion=0 <=*
Qualcomm · WSA8815 Firmwareversion=0 <=*

Published CVSS scores

6.7QualcommCVSS:3.1/AV:L/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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