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CVE-2025-47403

Buffer Over-read in WLAN Firmware

6.5 Medium

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.22%Up 0.2 points since May 5, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.5

Buffer Over-read in WLAN Firmware

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

Record
CVE-2025-47403
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-126
Updated
2026-11-02
EUVDEUVD-2025-209628 6.5

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

Record
EUVD-2025-209628
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-w77j-cqm5-vgh4 6.5

Transient DOS when processing a malformed Fast Transition response frame with an invalid header...

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

Record
GHSA-w77j-cqm5-vgh4
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-125, CWE-126
Updated
2026-11-02
NVD 6.5

Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.

Record
CVE-2025-47403
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-126, CWE-125
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-47403 is a medium vulnerability (CVSS 6.5) in Qualcomm Ar8035 Firmware, published May 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. No source names a fixed version.

References

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