CVE-2026-21367
Buffer Over-read in WLAN Firmware
7.6 High
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
0.21%Up 0.2 points since Apr 7, 2026
What each source reports
CVE List Score used
Buffer Over-read in WLAN Firmware
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.
- Record
CVE-2026-21367- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-126
- Updated
- 2026-11-02
EUVDEUVD-2026-19320
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.
- Record
EUVD-2026-19320- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-78j8-w6rh-444w
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes...
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.
- Record
GHSA-78j8-w6rh-444w- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-126
- Updated
- 2026-11-02
NVD
Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.
- Record
CVE-2026-21367- CVSS 3.1
- 7.6 High
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H - CVSS 3.1
- 7.5 High
CVSS: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
Affected products
- qualcomm ar8035 firmware
- qualcomm cologne firmware
- qualcomm csr8811 firmware
- qualcomm fastconnect 6200 firmware
- qualcomm fastconnect 6700 firmware
- qualcomm fastconnect 6900 firmware
- qualcomm fastconnect 7800 firmware
- qualcomm fwa gen 3 ultra firmware
- qualcomm g2 gen 1 firmware
- qualcomm immersive home 214 platform firmware
- qualcomm immersive home 216 platform firmware
- qualcomm immersive home 316 platform firmware
Show 139 moreShow less
- qualcomm immersive home 318 platform firmware
- qualcomm ipq5010 firmware
- qualcomm ipq5028 firmware
- qualcomm ipq6000 firmware
- qualcomm ipq6010 firmware
- qualcomm ipq6018 firmware
- qualcomm ipq8076 firmware
- qualcomm ipq8078 firmware
- qualcomm ipq9574 firmware
- qualcomm milos firmware
- qualcomm netrani firmware
- qualcomm networking pro 1200 platform firmware
- qualcomm networking pro 1210 platform firmware
- qualcomm networking pro 1610 platform firmware
- qualcomm networking pro 400 platform firmware
- qualcomm networking pro 600 platform firmware
- qualcomm networking pro 610 platform firmware
- qualcomm networking pro 800 platform firmware
- qualcomm networking pro 810 platform firmware
- qualcomm orne firmware
- qualcomm palawan25 firmware
- qualcomm pandeiro firmware
- qualcomm qca4024 firmware
- qualcomm qca6391 firmware
- qualcomm qca6698au firmware
- qualcomm qca6777aq firmware
- qualcomm qca6787aq firmware
- qualcomm qca6797aq firmware
- qualcomm qca8075 firmware
- qualcomm qca8081 firmware
- qualcomm qca8082 firmware
- qualcomm qca8084 firmware
- qualcomm qca8085 firmware
- qualcomm qca8337 firmware
- qualcomm qca8386 firmware
- qualcomm qca9888 firmware
- qualcomm qca9889 firmware
- qualcomm qcc2073 firmware
- qualcomm qcc2076 firmware
- qualcomm qcc710 firmware
- qualcomm qcm4490 firmware
- qualcomm qcn5022 firmware
- qualcomm qcn5024 firmware
- qualcomm qcn5052 firmware
- qualcomm qcn5122 firmware
- qualcomm qcn5124 firmware
- qualcomm qcn5152 firmware
- qualcomm qcn5154 firmware
- qualcomm qcn5164 firmware
- qualcomm qcn6023 firmware
- qualcomm qcn6024 firmware
- qualcomm qcn6122 firmware
- qualcomm qcn6132 firmware
- qualcomm qcn6224 firmware
- qualcomm qcn6274 firmware
- qualcomm qcn9000 firmware
- qualcomm qcn9011 firmware
- qualcomm qcn9012 firmware
- qualcomm qcn9022 firmware
- qualcomm qcn9024 firmware
- qualcomm qcn9070 firmware
- qualcomm qcn9100 firmware
- qualcomm qcn9274 firmware
- qualcomm qcs4490 firmware
- qualcomm qcs8550 firmware
- qualcomm qfw7114 firmware
- qualcomm qfw7124 firmware
- qualcomm qln1083bd firmware
- qualcomm qln1086bd firmware
- qualcomm qmp1000 firmware
- qualcomm qpa1083bd firmware
- qualcomm qpa1086bd firmware
- qualcomm qxm1093 firmware
- qualcomm qxm1094 firmware
- qualcomm qxm1095 firmware
- qualcomm qxm1096 firmware
- qualcomm sar2130p firmware
- qualcomm sc8380xp firmware
- qualcomm sd 8 gen1 5g firmware
- qualcomm sm6650p firmware
- qualcomm sm7435 firmware
- qualcomm sm7635p firmware
- qualcomm sm7675 firmware
- qualcomm sm7675p firmware
- qualcomm sm8475p firmware
- qualcomm sm8635 firmware
- qualcomm sm8635p firmware
- qualcomm sm8650q firmware
- qualcomm sm8750p firmware
- qualcomm snapdragon 6 gen 1 mobile platform firmware
- qualcomm snapdragon 6 gen 3 mobile platform firmware
- qualcomm snapdragon 6 gen 4 mobile platform firmware
- qualcomm snapdragon 7\+ gen 2 mobile platform firmware
- qualcomm snapdragon 7 gen 1 mobile platform firmware
- qualcomm snapdragon 7s gen 3 mobile platform firmware
- qualcomm snapdragon 8\+ gen 1 mobile platform firmware
- qualcomm snapdragon 8 elite firmware
- qualcomm snapdragon 8 elite gen 5 firmware
- qualcomm snapdragon 8 gen 1 mobile platform firmware
- qualcomm snapdragon 8 gen 3 mobile platform firmware
- qualcomm snapdragon x72 5g modem-rf system firmware
- qualcomm snapdragon x75 5g modem-rf system firmware
- qualcomm wcd9340 firmware
- qualcomm wcd9370 firmware
- qualcomm wcd9375 firmware
- qualcomm wcd9378 firmware
- qualcomm wcd9378c firmware
- qualcomm wcd9380 firmware
- qualcomm wcd9385 firmware
- qualcomm wcd9390 firmware
- qualcomm wcd9395 firmware
- qualcomm wcn3950 firmware
- qualcomm wcn3988 firmware
- qualcomm wcn6450 firmware
- qualcomm wcn6650 firmware
- qualcomm wcn6755 firmware
- qualcomm wcn7860 firmware
- qualcomm wcn7861 firmware
- qualcomm wcn7880 firmware
- qualcomm wcn7881 firmware
- qualcomm wsa8810 firmware
- qualcomm wsa8815 firmware
- qualcomm wsa8830 firmware
- qualcomm wsa8832 firmware
- qualcomm wsa8835 firmware
- qualcomm wsa8840 firmware
- qualcomm wsa8845 firmware
- qualcomm wsa8845h firmware
- qualcomm x2000077 firmware
- qualcomm x2000086 firmware
- qualcomm x2000090 firmware
- qualcomm x2000092 firmware
- qualcomm x2000094 firmware
- qualcomm xg101002 firmware
- qualcomm xg101032 firmware
- qualcomm xg101039 firmware
- qualcomm xrv7209 firmware
- qualcomm xrv9209 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-2026-21367 is a high vulnerability (CVSS 7.6) in Qualcomm Ar8035 Firmware, published April 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.