CVE-2023-28555Network attack vector

Audio interruption via channel-buffer over-read

Published Aug 8, 2023 · Updated Aug 2, 2024

Buffer over-read in Qualcomm Snapdragon Audio firmware allows remote attackers to interrupt audio decoding through crafted media. The media-codec decoder reads beyond the valid channel buffer while remapping it; Qualcomm has not disclosed the malformed field or boundary error. No privileges or user interaction are required, and successful exploitation causes a transient service interruption rather than data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.41%
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

Buffer over-read in Qualcomm Snapdragon Audio firmware allows remote attackers to interrupt audio decoding through crafted media. The media-codec decoder reads beyond the valid channel buffer while remapping it; Qualcomm has not disclosed the malformed field or boundary error. No privileges or user interaction are required, and successful exploitation causes a transient service interruption rather than data disclosure or modification.

The record

CVE
CVE-2023-28555
Published
Aug 8, 2023
Updated
Aug 2, 2024
Vendor
Qualcomm
Product
SA8155P Firmware
Classifications
CWE-126, CWE-125, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 8, 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=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualcomm · SA8155P Firmwareversion=*
Qualcomm · SW5100 Firmwareversion=*
Qualcomm · SW5100P Firmwareversion=*
Qualcomm · Qualcomm QCA6595AU Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 4 Gen 1 Mobile Platform Firmwareversion=*
Qualcomm · Qualcomm WCD9375 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 680 4G Mobile Platform Firmwareversion=*
Qualcomm · Snapdragon Auto 5G Modem-RF Firmwareversion=*
Qualcomm · WSA8810 Firmwareversion=*
Qualcomm · QCA8337 Firmwareversion=*
Qualcomm · SA6150P Firmwareversion=*
Qualcomm · QCA8081 Firmwareversion=*
Qualcomm · FastConnect 7800 Firmwareversion=*
Qualcomm · Qualcomm SM4450 Firmwareversion=*
Qualcomm · QCM4490 Firmwareversion=*
Qualcomm · SA8195P Firmwareversion=*
Qualcomm · Snapdragon X65 5G Modem-RF System Firmwareversion=*
Qualcomm · Snapdragonversion=AR8035; version=FastConnect 6200; version=FastConnect 6700; version=FastConnect 6900; version=FastConnect 7800; version=MDM9628; version=QAM8295P; version=QCA6564A; version=QCA6564AU; version=QCA6574; version=QCA6574A; version=QCA6574AU; version=QCA6595AU; version=QCA6696; version=QCA8081; version=QCA8337; version=QCM4325; version=QCM4490; version=QCN6024; version=QCN9024; version=QCS4490; version=SA4150P; version=SA4155P; version=SA6145P; version=SA6150P; version=SA6155P; version=SA8145P; version=SA8150P; version=SA8155P; version=SA8195P; version=SA8295P; version=SD865 5G; version=SD 8 Gen1 5G; version=SDX55; version=SG4150P; version=SM4450; version=Snapdragon 480 5G Mobile Platform; version=Snapdragon 480+ 5G Mobile Platform (SM4350-AC); version=Snapdragon 4 Gen 1 Mobile Platform; version=Snapdragon 680 4G Mobile Platform; version=Snapdragon 685 4G Mobile Platform (SM6225-AD); version=Snapdragon 695 5G Mobile Platform; version=Snapdragon 888 5G Mobile Platform; version=Snapdragon 888+ 5G Mobile Platform (SM8350-AC); version=Snapdragon 8 Gen 1 Mobile Platform; version=Snapdragon 8+ Gen 1 Mobile Platform; version=Snapdragon AR2 Gen 1 Platform; version=Snapdragon Auto 5G Modem-RF; version=Snapdragon W5+ Gen 1 Wearable Platform; version=Snapdragon X65 5G Modem-RF System; version=Snapdragon XR2 5G Platform; version=SSG2115P; version=SSG2125P; version=SW5100; version=SW5100P; version=SXR1230P; version=SXR2230P; version=WCD9370; version=WCD9375; version=WCD9380; version=WCD9385; version=WCN3950; version=WCN3980; version=WCN3988; version=WCN6740; version=WSA8810; version=WSA8815; version=WSA8830; version=WSA8832; version=WSA8835
Qualcomm · SA6155P Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 8 Gen 1 Mobile Platform Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 695 5G Mobile Platform Firmwareversion=*
Qualcomm · SA8295P Firmwareversion=*
Qualcomm · SXR1230P Firmwareversion=*
Qualcomm · SA8145P Firmwareversion=*
Qualcomm · SA4155P Firmwareversion=*
Qualcomm · FastConnect 6700 Firmwareversion=*
Qualcomm · Qualcomm QCA6564A Firmwareversion=*
Qualcomm · FastConnect 6900 Firmwareversion=*
Qualcomm · SSG2125P Firmwareversion=*
Qualcomm · QCS4490 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 480 5G Mobile Platform Firmwareversion=*
Qualcomm · WCD9370 Firmwareversion=*
Qualcomm · SA8150P Firmwareversion=*
Qualcomm · SSG2115P Firmwareversion=*
Qualcomm · SD 8 Gen1 5G Firmwareversion=*
Qualcomm · Qualcomm QCA6564AU Firmwareversion=*
Qualcomm · WCN3988 Firmwareversion=*
Qualcomm · QAM8295P Firmwareversion=*
Qualcomm · QCA6574AU Firmwareversion=*
Qualcomm · WCD9380 Firmwareversion=*
Qualcomm · Qualcomm WCN6740 Firmwareversion=*
Qualcomm · Qualcomm QCA6574A Firmwareversion=*
Qualcomm · Qualcomm QCA6574 Firmwareversion=*
Qualcomm · QCM4325 Firmwareversion=*
Qualcomm · QCN6024 Firmwareversion=*
Qualcomm · SXR2230P Firmwareversion=*
Qualcomm · Qualcomm Snapdragon AR2 Gen 1 Platform Firmwareversion=*
Qualcomm · SA6145P Firmwareversion=*
Qualcomm · Qualcomm SD865 5G Firmwareversion=*
Qualcomm · FastConnect 6200 Firmwareversion=*
Qualcomm · AR8035 Firmwareversion=*
Qualcomm · QCN9024 Firmwareversion=*
Qualcomm · MDM9628 Firmwareversion=*
Qualcomm · Qualcomm SDX55 Firmwareversion=*
Qualcomm · Qualcomm SG4150P Firmwareversion=*
Qualcomm · WCN3950 Firmwareversion=*
Qualcomm · WSA8830 Firmwareversion=*
Qualcomm · Qualcomm Snapdragon 888+ 5G Mobile Platform Firmwareversion=*
Qualcomm · Qualcomm Snapdragon XR2 5G Platform Firmwareversion=*
Qualcomm · WCD9385 Firmwareversion=*
Qualcomm · WCN3980 Firmwareversion=*
Qualcomm · WSA8835 Firmwareversion=*
Qualcomm · SA4150P Firmwareversion=*
Qualcomm · WSA8832 Firmwareversion=*
Qualcomm · QCA6696 Firmwareversion=*
Qualcomm · WSA8815 Firmwareversion=*

Published CVSS scores

7.5Qualcomm, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-126Buffer Over-read
CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

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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