CVE-2025-21438
Out-of-bounds Read in Windows WLAN Host
Memory corruption while IOCTL call is invoked from user-space to read board data.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Out-of-bounds Read in Windows WLAN Host
Memory corruption while IOCTL call is invoked from user-space to read board data.
- Record
CVE-2025-21438- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2025-9994
Memory corruption while IOCTL call is invoked from user-space to read board data.
- Record
EUVD-2025-9994- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8gwj-4mvc-6737
Memory corruption while IOCTL call is invoked from user-space to read board data.
Memory corruption while IOCTL call is invoked from user-space to read board data.
- Record
GHSA-8gwj-4mvc-6737- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
Memory corruption while IOCTL call is invoked from user-space to read board data.
- Record
CVE-2025-21438- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
Affected products
- qualcomm fastconnect 6200 firmware
- qualcomm fastconnect 6700 firmware
- qualcomm fastconnect 6900 firmware
- qualcomm fastconnect 7800 firmware
- qualcomm qca6164 firmware
- qualcomm qca6174 firmware
- qualcomm qca6174a firmware
- qualcomm qca6595au firmware
- qualcomm qca9377 firmware
- qualcomm qcm5430 firmware
- qualcomm qcm6490 firmware
- qualcomm qcn7605 firmware
Show 32 moreShow less
- qualcomm qcn7606 firmware
- qualcomm qcs5430 firmware
- qualcomm qcs6490 firmware
- qualcomm sc8180x\+sdx55 firmware
- qualcomm sc8380xp firmware
- qualcomm sm6250 firmware
- qualcomm snapdragon 7c\+ gen 3 compute firmware
- qualcomm snapdragon 7c compute platform \(sc7180-ac\) firmware
- qualcomm snapdragon 7c gen 2 compute platform \(sc7180-ad\) \"rennell pro\" firmware
- qualcomm snapdragon 8c compute platform \(sc8180x-ad\) firmware
- qualcomm snapdragon 8c compute platform \(sc8180xp-ad\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180x-aa\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180x-ab\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180xp-ac\) firmware
- qualcomm snapdragon 8cx compute platform \(sc8180xp-af\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180x-ac\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180x-af\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180xp-aa\) firmware
- qualcomm snapdragon 8cx gen 2 5g compute platform \(sc8180xp-ab\) firmware
- qualcomm snapdragon 8cx gen 3 compute platform \(sc8280xp-ab\) firmware
- qualcomm snapdragon 8cx gen 3 compute platform \(sc8280xp-bb\) firmware
- qualcomm video collaboration vc3 platform firmware
- qualcomm wcd9370 firmware
- qualcomm wcd9375 firmware
- qualcomm wcd9380 firmware
- qualcomm wcd9385 firmware
- qualcomm wsa8830 firmware
- qualcomm wsa8835 firmware
- qualcomm wsa8840 firmware
- qualcomm wsa8845 firmware
- qualcomm wsa8845h firmware
- qualcomm, inc. snapdragon
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-21438 is a high vulnerability (CVSS 7.8) in Qualcomm Fastconnect 6200 Firmware, published April 7, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.11%, the 1st percentile. No source names a fixed version.