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NVD / CVE Program· CNA qualcomm

CVE-2023-43528: Buffer Over-read in Audio

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.10% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Information disclosure when the ADSP payload size received in HLOS in response to Audio Stream Manager matrix session is less than this expected size.

MediumCVSS 5.5 · v3.1—No exploit No fix recorded
Published
May 6, 2024
Updated
Jun 17, 2026
EPSS
0.1% · 1th percentile

Report tools

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Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · qualcomm
6.1
0.6 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-43528

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
qualcommar8035 firmware
qualcommar8035
qualcommc-v2x 9150 firmware
qualcommc-v2x 9150
qualcommcsrb31024 firmware
qualcommcsrb31024
qualcommfastconnect 6800 firmware
qualcommfastconnect 6800
qualcommfastconnect 6900 firmware
qualcommfastconnect 6900
qualcommfastconnect 7800 firmware
qualcommfastconnect 7800

and 170 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • qualcomm ar8035 firmwareall versions
  • qualcomm c-v2x 9150 firmwareall versions
  • qualcomm csrb31024 firmwareall versions
  • qualcomm fastconnect 6800 firmwareall versions
  • qualcomm fastconnect 6900 firmwareall versions
  • qualcomm fastconnect 7800 firmwareall versions
  • qualcomm msm8996au firmwareall versions
  • qualcomm qam8255p firmwareall versions
  • qualcomm qam8295p firmwareall versions
  • qualcomm qam8650p firmwareall versions
  • qualcomm qam8775p firmwareall versions
  • qualcomm qamsrv1h firmwareall versions
  • qualcomm qamsrv1m firmwareall versions
  • qualcomm qca6310 firmwareall versions
  • qualcomm qca6320 firmwareall versions
  • qualcomm qca6391 firmwareall versions
  • qualcomm qca6426 firmwareall versions
  • qualcomm qca6436 firmwareall versions
  • qualcomm qca6564a firmwareall versions
  • qualcomm qca6564au firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (qualcomm). Independent of NVD's CPE analysis and usually ahead of it.

  • Qualcomm, Inc. Snapdragon

    • AR8035, C-V2X 9150, CSRB31024, FastConnect 6800, FastConnect 6900, FastConnect 7800, MSM8996AU, QAM8255P, QAM8295P, QAM8650P, QAM8775P, QAMSRV1H … (+28)affected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-33106Use of Out-of-range Pointer Offset in GraphicsKEV
    61This week
  • CVE-2024-49839Buffer Over-read in WLAN Host Cmn
    39Monitor
  • CVE-2024-45569Improper Validation of Array Index in WLAN Host Communication
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2023-43525May 6, 2024 · Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Audio
    31Monitor
  • ← EarlierCVE-2023-43526May 6, 2024 · Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Audio
    31Monitor
  • Later →CVE-2023-43531May 6, 2024 · Access of Uninitialized Pointer in SPS Applications
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-49839273 days apartBuffer Over-read in WLAN Host Cmn
    39Monitor
  • CVE-2024-2145656 days apartBuffer Over-read in WLAN HOST
    36Monitor
  • CVE-2023-3305890 days apartBuffer Copy Without Checking Size of Input in Modem
    36Monitor
  • CVE-2023-4353728 days apartBuffer Over-read in WLAN Host
    30Monitor
  • CVE-2024-2336328 days apartBuffer Over-read in WLAN Firmware
    30Monitor
  • CVE-2024-2145856 days apartBuffer Over-read in WLAN HOST
    30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-126 · Buffer Over-read

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records