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CVE-2023-33028· NVD / CVE Program· CNA qualcomm

Buffer Copy without Checking Size of Input in WLAN Firmware

Memory corruption in WLAN Firmware while doing a memory copy of pmk cache.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Oct 3, 2023
Updated
Jun 17, 2026
EPSS
0.5% · 43th percentile
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Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · qualcomm
9.8
agree

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

Affected systems

VendorProduct
qualcommar8035 firmware
qualcommar8035
qualcommar9380 firmware
qualcommar9380
qualcommcsr8811 firmware
qualcommcsr8811
qualcommwcn6750 firmware
qualcommwcn6750
qualcommqca6390 firmware
qualcommqca6390
qualcommwcn685x-5 firmware
qualcommwcn685x-5

and 188 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 ar9380 firmwareall versions
  • qualcomm csr8811 firmwareall versions
  • qualcomm immersive home 214 platform firmwareall versions
  • qualcomm immersive home 216 platform firmwareall versions
  • qualcomm immersive home 316 platform firmwareall versions
  • qualcomm immersive home 318 platform firmwareall versions
  • qualcomm immersive home 3210 platform firmwareall versions
  • qualcomm immersive home 326 platform firmwareall versions
  • qualcomm ipq5010 firmwareall versions
  • qualcomm ipq5028 firmwareall versions
  • qualcomm ipq5332 firmwareall versions
  • qualcomm ipq6000 firmwareall versions
  • qualcomm ipq6010 firmwareall versions
  • qualcomm ipq6018 firmwareall versions
  • qualcomm ipq6028 firmwareall versions
  • qualcomm ipq8064 firmwareall versions
  • qualcomm ipq8065 firmwareall versions
  • qualcomm ipq8068 firmwareall versions
  • qualcomm ipq8070a 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, AR9380, CSR8811, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800, Immersive Home 214 Platform, Immersive Home 216 Platform, Immersive Home 316 Platform, Immersive Home 318 Platform, Immersive Home 3210 Platform … (+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
  • CVE-2024-21480Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Audio
    39Monitor
  • CVE-2024-21473Improper Input Validation in WIN SON
    39Monitor
  • CVE-2024-21463Buffer Copy Without Checking Size of Input in Audio
    39Monitor

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-2023-43520126 days apartStack-based Buffer Overflow in WLAN HOST
    39Monitor
  • CVE-2023-2485491 days apartStack-based Buffer Overflow in WLAN HOST
    31Monitor
  • CVE-2023-43549153 days apartStack-based Buffer Overflow in WLAN HAL
    31Monitor
  • CVE-2024-21474216 days apartStack-based Buffer Overflow in PMIC
    31Monitor

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).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

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

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.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

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