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CVE-2023-21661

Buffer Over-read in WLAN Firmware

7.5 High

Transient DOS while parsing WLAN beacon or probe-response frame.

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

0.38%Up 0.3 points since Jun 6, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.5

Buffer Over-read in WLAN Firmware

Transient DOS while parsing WLAN beacon or probe-response frame.

Record
CVE-2023-21661
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-2023-25828 7.5

Transient DOS while parsing WLAN beacon or probe-response frame.

Record
EUVD-2023-25828
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
2026-11-03
GitHub AdvisoriesGHSA-qcvh-ffq5-55f3 7.5

Transient DOS while parsing WLAN beacon or probe-response frame.

Transient DOS while parsing WLAN beacon or probe-response frame.

Record
GHSA-qcvh-ffq5-55f3
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 while parsing WLAN beacon or probe-response frame.

Record
CVE-2023-21661
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
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

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

In short

CVE-2023-21661 is a high vulnerability (CVSS 7.5) in Qualcomm Ar8035 Firmware, published June 6, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. No source names a fixed version.

References

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