CVE-2024-33028

Memory corruption via released isync fence access

Published Aug 5, 2024 · Updated Aug 5, 2024

Use-after-free in Qualcomm isync fence timeline teardown allows local users to corrupt memory after a released fence remains accessible. Timeline destruction retains or dereferences a fence object after the isync fence has been released, violating the object's lifetime. No privileges or user interaction are required; successful exploitation can compromise confidentiality, integrity, and availability.

CVSS severity8.4
High
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

Use-after-free in Qualcomm isync fence timeline teardown allows local users to corrupt memory after a released fence remains accessible. Timeline destruction retains or dereferences a fence object after the isync fence has been released, violating the object's lifetime. No privileges or user interaction are required; successful exploitation can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2024-33028
Published
Aug 5, 2024
Updated
Aug 5, 2024
Vendor
Qualcomm
Product
SA8155P Firmware
Classifications
CWE-416, T1068
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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 privilegesunauthenticated

What is affected?

Qualcomm · SA8155P Firmwareversion=0 <=*
Qualcomm · SA9000P Firmwareversion=0 <=*
Qualcomm · Qualcomm QRB5165N Firmwareversion=0 <=*
Qualcomm · QCS8250 Firmwareversion=0 <=*
Qualcomm · QCA6698AQ Firmwareversion=0 <=*
Qualcomm · SW5100 Firmwareversion=0 <=*
Qualcomm · SW5100P Firmwareversion=0 <=*
Qualcomm · QAM8255P Firmwareversion=0 <=*
Qualcomm · WCD9390 Firmwareversion=0 <=*
Qualcomm · SA8540P Firmwareversion=0 <=*
Qualcomm · QDX1011 Firmwareversion=0 <=*
Qualcomm · Flight RB5 5G Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 4 Gen 1 Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9375 Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC5 Platform Firmwareversion=0 <=*
Qualcomm · QCN6274 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6678AQ Firmwareversion=0 <=*
Qualcomm · SA8770P Firmwareversion=0 <=*
Qualcomm · Snapdragon X72 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · SA8620P Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 680 4G Mobile Platform Firmwareversion=0 <=*
Qualcomm · QCS610 Firmwareversion=0 <=*
Qualcomm · Snapdragon Auto 5G Modem-RF Firmwareversion=0 <=*
Qualcomm · QAMSRV1M Firmwareversion=0 <=*
Qualcomm · CSRA6620 Firmwareversion=0 <=*
Qualcomm · Qualcomm SG8275P Firmwareversion=0 <=*
Qualcomm · SRV1M Firmwareversion=0 <=*
Qualcomm · Qualcomm SM8550P Firmwareversion=0 <=*
Qualcomm · WSA8810 Firmwareversion=0 <=*
Qualcomm · QCA8337 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6797AQ Firmwareversion=0 <=*
Qualcomm · SA6150P Firmwareversion=0 <=*
Qualcomm · QCA8081 Firmwareversion=0 <=*
Qualcomm · FastConnect 7800 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6595 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 8 Gen 3 Mobile Platform Firmwareversion=0 <=*
Qualcomm · QCS410 Firmwareversion=0 <=*
Qualcomm · QAM8650P Firmwareversion=0 <=*
Qualcomm · QCS7230 Firmwareversion=0 <=*
Qualcomm · SA8195P Firmwareversion=0 <=*
Qualcomm · SA7775P Firmwareversion=0 <=*
Qualcomm · CSRA6640 Firmwareversion=0 <=*
Qualcomm · SA8775P Firmwareversion=0 <=*
Qualcomm · QCM6490 Firmwareversion=0 <=*
Qualcomm · Snapdragonversion=AR8035; version=CSRA6620; version=CSRA6640; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6900; version=FastConnect 7800; version=Flight RB5 5G Platform; version=MDM9628; version=QAM8255P; version=QAM8295P; version=QAM8620P; version=QAM8650P; version=QAM8775P; version=QAMSRV1H; version=QAMSRV1M; version=QCA6174A; version=QCA6391; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6584AU; version=QCA6595; version=QCA6595AU; version=QCA6678AQ; version=QCA6688AQ; version=QCA6696; version=QCA6698AQ; version=QCA6797AQ; version=QCA8081; version=QCA8337; version=QCA9367; version=QCA9377; version=QCC710; version=QCM4325; version=QCM5430; version=QCM6125; version=QCM6490; version=QCM8550; version=QCN6224; version=QCN6274; version=QCN9011; version=QCN9012; version=QCS410; version=QCS5430; version=QCS610; version=QCS6125; version=QCS6490; version=QCS7230; version=QCS8250; version=QCS8550; version=QDU1000; version=QDU1010; version=QDU1110; version=QDU1210; version=QDX1010; version=QDX1011; version=QEP8111; version=QFW7114; version=QFW7124; version=QRB5165M; version=QRB5165N; version=QRU1032; version=QRU1052; version=QRU1062; version=Qualcomm Video Collaboration VC1 Platform; version=Qualcomm Video Collaboration VC3 Platform; version=Qualcomm Video Collaboration VC5 Platform; version=Robotics RB5 Platform; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155P; version=SA7255P; version=SA7775P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=SA8255P; version=SA8295P; version=SA8530P; version=SA8540P; version=SA8620P; version=SA8650P; version=SA8770P; version=SA8775P; version=SA9000P; version=SG4150P; version=SG8275P; version=SM8550P; version=Smart Audio 400 Platform; version=Snapdragon 460 Mobile Platform; version=Snapdragon 480 5G Mobile Platform; version=Snapdragon 480+ 5G Mobile Platform (SM4350-AC); version=Snapdragon 4 Gen 1 Mobile Platform; version=Snapdragon 662 Mobile Platform; version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform (SM6225-AD); version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 8 Gen 2 Mobile Platform; version=Snapdragon 8+ Gen 2 Mobile Platform; version=Snapdragon 8 Gen 3 Mobile Platform; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon Auto 5G Modem-RF Gen 2; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon X35 5G Modem-RF System; version=Snapdragon X72 5G Modem-RF System; version=Snapdragon X75 5G Modem-RF System; version=SRV1H; version=SRV1L; version=SRV1M; version=SW5100; version=SW5100P; version=Vision Intelligence 400 Platform; version=WCD9335; version=WCD9340; version=WCD9341; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCD9390; version=WCD9395; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN3990; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8835; version=WSA8840; version=WSA8845; version=WSA8845H
Qualcomm · SA6155P Firmwareversion=0 <=*
Qualcomm · QRU1032 Firmwareversion=0 <=*
Qualcomm · SA8530P Firmwareversion=0 <=*
Qualcomm · WSA8845H Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 695 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · SA8255P Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA9367 Firmwareversion=0 <=*
Qualcomm · QCS6490 Firmwareversion=0 <=*
Qualcomm · QDX1010 Firmwareversion=0 <=*
Qualcomm · SA8295P Firmwareversion=0 <=*
Qualcomm · SA8145P Firmwareversion=0 <=*
Qualcomm · SA4155P Firmwareversion=0 <=*
Qualcomm · FastConnect 6700 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564A Firmwareversion=0 <=*
Qualcomm · QRU1052 Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC1 Platform Firmwareversion=0 <=*
Qualcomm · FastConnect 6900 Firmwareversion=0 <=*
Qualcomm · QEP8111 Firmwareversion=0 <=*
Qualcomm · QCM8550 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA9377 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 480 5G Mobile Platform Firmwareversion=0 <=*
Qualcomm · QCS8550 Firmwareversion=0 <=*
Qualcomm · WCD9370 Firmwareversion=0 <=*
Qualcomm · SA8150P Firmwareversion=0 <=*
Qualcomm · Qualcomm QRB5165M Firmwareversion=0 <=*
Qualcomm · WSA8845 Firmwareversion=0 <=*
Qualcomm · QFW7124 Firmwareversion=0 <=*
Qualcomm · Qualcomm Smart Audio 400 Platform Firmwareversion=0 <=*
Qualcomm · QCN6224 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9341 Firmwareversion=0 <=*
Qualcomm · QCM5430 Firmwareversion=0 <=*
Qualcomm · QCS5430 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 662 Mobile Platform Firmwareversion=0 <=*
Qualcomm · QAMSRV1H Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6564AU Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 460 Mobile Platform Firmwareversion=0 <=*
Qualcomm · QDU1210 Firmwareversion=0 <=*
Qualcomm · SA7255P Firmwareversion=0 <=*
Qualcomm · WCN3988 Firmwareversion=0 <=*
Qualcomm · Snapdragon X35 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · WCD9395 Firmwareversion=0 <=*
Qualcomm · Vision Intelligence 400 Platform Firmwareversion=0 <=*
Qualcomm · QAM8295P Firmwareversion=0 <=*
Qualcomm · QCA6574AU Firmwareversion=0 <=*
Qualcomm · QCA6584AU Firmwareversion=0 <=*
Qualcomm · QDU1000 Firmwareversion=0 <=*
Qualcomm · QCA6688AQ Firmwareversion=0 <=*
Qualcomm · WCD9380 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=0 <=*
Qualcomm · QCN9012 Firmwareversion=0 <=*
Qualcomm · WSA8840 Firmwareversion=0 <=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=0 <=*
Qualcomm · Snapdragon Auto 5G Modem-RF Gen 2 Firmwareversion=0 <=*
Qualcomm · QRU1062 Firmwareversion=0 <=*
Qualcomm · QCM4325 Firmwareversion=0 <=*
Qualcomm · QAM8620P Firmwareversion=0 <=*
Qualcomm · QCN9011 Firmwareversion=0 <=*
Qualcomm · SA6145P Firmwareversion=0 <=*
Qualcomm · Qualcomm WCN3990 Firmwareversion=0 <=*
Qualcomm · FastConnect 6200 Firmwareversion=0 <=*
Qualcomm · AR8035 Firmwareversion=0 <=*
Qualcomm · QCC710 Firmwareversion=0 <=*
Qualcomm · QCA6174A Firmwareversion=0 <=*
Qualcomm · QAM8775P Firmwareversion=0 <=*
Qualcomm · MDM9628 Firmwareversion=0 <=*
Qualcomm · Qualcomm SG4150P Firmwareversion=0 <=*
Qualcomm · WCN3950 Firmwareversion=0 <=*
Qualcomm · WSA8830 Firmwareversion=0 <=*
Qualcomm · QCA6391 Firmwareversion=0 <=*
Qualcomm · WCD9385 Firmwareversion=0 <=*
Qualcomm · WCD9340 Firmwareversion=0 <=*
Qualcomm · QCM6125 Firmwareversion=0 <=*
Qualcomm · WCN3980 Firmwareversion=0 <=*
Qualcomm · WSA8835 Firmwareversion=0 <=*
Qualcomm · Qualcomm Snapdragon 8 Gen 2 Mobile Platform Firmwareversion=0 <=*
Qualcomm · Qualcomm Video Collaboration VC3 Platform Firmwareversion=0 <=*
Qualcomm · SA8650P Firmwareversion=0 <=*
Qualcomm · QCS6125 Firmwareversion=0 <=*
Qualcomm · Qualcomm WCD9335 Firmwareversion=0 <=*
Qualcomm · SA4150P Firmwareversion=0 <=*
Qualcomm · SRV1H Firmwareversion=0 <=*
Qualcomm · Snapdragon X75 5G Modem-RF System Firmwareversion=0 <=*
Qualcomm · QCA6696 Firmwareversion=0 <=*
Qualcomm · SRV1L Firmwareversion=0 <=*
Qualcomm · QDU1110 Firmwareversion=0 <=*
Qualcomm · QFW7114 Firmwareversion=0 <=*
Qualcomm · WSA8815 Firmwareversion=0 <=*
Qualcomm · QDU1010 Firmwareversion=0 <=*
Qualcomm · Robotics RB5 Platform Firmwareversion=0 <=*

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.4Qualcomm, Inc.CVSS:3.1/AV:L/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

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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