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CVE-2025-21446

Buffer Over-read in WLAN Firmware

7.5 High

Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN frame for BTM requests.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.24%Up 0.2 points since Jul 9, 2025
90%50%10%1%

What each source reports

CVE List Score used 7.5

Buffer Over-read in WLAN Firmware

Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN frame for BTM requests.

Record
CVE-2025-21446
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
Updated
2026-11-02
EUVDEUVD-2025-20487 7.5

Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN frame for BTM requests.

Record
EUVD-2025-20487
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-vr8p-mwh4-q7pp 7.5

Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN...

Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN frame for BTM requests.

Record
GHSA-vr8p-mwh4-q7pp
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-125, CWE-126
Updated
2026-11-02
NVD 7.5

Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN frame for BTM requests.

Record
CVE-2025-21446
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-2025-21446 is a high vulnerability (CVSS 7.5) in Qualcomm Ar8035 Firmware, published July 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. No source names a fixed version.

References

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