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CVE-2025-47402· NVD / CVE Program· CNA qualcomm

Buffer Over-read in WLAN Firmware

Transient DOS when processing a received frame with an excessively large authentication information element.

MediumCVSS 6.5 · v3.1—No exploit No fix recorded
Published
Feb 2, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 3th percentile
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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 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
—
CNA · qualcomm
6.5
NVD has not scored this yet; the score shown is the CNA’s.

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

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
qualcommsa8620p firmware
qualcommsa8620p
qualcommsa8770p firmware
qualcommsa8770p
qualcommsa9000p firmware
qualcommsa9000p
qualcommsar2130p firmware
qualcommsar2130p
qualcommsm7675 firmware
qualcommsm7675
qualcommsm7675p firmware
qualcommsm7675p

and 176 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 cologne firmwareall versions
  • qualcomm fastconnect 6900 firmwareall versions
  • qualcomm fastconnect 7800 firmwareall versions
  • qualcomm fwa gen 3 ultra firmwareall versions
  • qualcomm lemans au lgit firmwareall versions
  • qualcomm lemansau firmwareall versions
  • qualcomm orne firmwareall versions
  • qualcomm palawan25 firmwareall versions
  • qualcomm qam8255p firmwareall versions
  • qualcomm qamsrv1h firmwareall versions
  • qualcomm qamsrv1m firmwareall versions
  • qualcomm qca6391 firmwareall versions
  • qualcomm qca6554a firmwareall versions
  • qualcomm qca6564au firmwareall versions
  • qualcomm qca6574 firmwareall versions
  • qualcomm qca6574a firmwareall versions
  • qualcomm qca6574au firmwareall versions
  • qualcomm qca6584au firmwareall versions
  • qualcomm qca6595 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, Cologne, FastConnect 6900, FastConnect 7800, FWA Gen 3 Ultra Platform, LeMans_AU_LGIT, LeMansAU, Orne, Palawan25, QAM8255P, QAMSRV1H, QAMSRV1M … (+28)affected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

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-2025-21454209 days apartBuffer Over-read in WLAN Embedded SW
    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).

Technical details

Attack conditions

  • Someone on the same network segment 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
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-126 · Buffer Over-read

CVSS vector

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

nvd-secondary

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