CVE-2026-21381: Transient DOS when receiving a service data frame with excessive length during device matching over a neighborhood…

Quick answers

Is CVE-2026-21381 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-21381 being exploited in the wild.

How severe is CVE-2026-21381?

High severity, with a CVSS score of 7.6, published 6 April 2026.

Which products and versions are affected?

Qualcomm Ar8035, Qualcomm Ar8035 Firmware, Qualcomm Cologne, Qualcomm Cologne Firmware and 200 more. The advisory does not name versions.

Is there a fix for CVE-2026-21381?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Am I affected by CVE-2026-21381?

Check whether you run Qualcomm Ar8035, Qualcomm Ar8035 Firmware, Qualcomm Cologne or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

• Qualcomm Ar8035
• Qualcomm Ar8035 Firmware
• Qualcomm Cologne
• Qualcomm Cologne Firmware
• Qualcomm Fastconnect 6200
• Qualcomm Fastconnect 6200 Firmware
• Qualcomm Fastconnect 6700
• Qualcomm Fastconnect 6700 Firmware
• Qualcomm Fastconnect 6900
• Qualcomm Fastconnect 6900 Firmware
• Qualcomm Fastconnect 7800
• Qualcomm Fastconnect 7800 Firmware
• Qualcomm Fwa Gen 3 Ultra
• Qualcomm Fwa Gen 3 Ultra Firmware
• Qualcomm G2 Gen 1
• Qualcomm G2 Gen 1 Firmware
• Qualcomm Milos
• Qualcomm Milos Firmware
• Qualcomm Netrani
• Qualcomm Netrani Firmware
• Qualcomm Orne
• Qualcomm Orne Firmware
• Qualcomm Palawan25
• Qualcomm Palawan25 Firmware
• Qualcomm Pandeiro
• Qualcomm Pandeiro Firmware
• Qualcomm Qca6391
• Qualcomm Qca6391 Firmware
• Qualcomm Qca6698au
• Qualcomm Qca6698au Firmware
• Qualcomm Qca6777aq
• Qualcomm Qca6777aq Firmware
• Qualcomm Qca6787aq
• Qualcomm Qca6787aq Firmware
• Qualcomm Qca6797aq
• Qualcomm Qca6797aq Firmware
• Qualcomm Qca8081
• Qualcomm Qca8081 Firmware
• Qualcomm Qca8337
• Qualcomm Qca8337 Firmware
• Qualcomm Qcc2073
• Qualcomm Qcc2073 Firmware
• Qualcomm Qcc2076
• Qualcomm Qcc2076 Firmware
• Qualcomm Qcc710
• Qualcomm Qcc710 Firmware
• Qualcomm Qcn6224
• Qualcomm Qcn6224 Firmware
• Qualcomm Qcn6274
• Qualcomm Qcn6274 Firmware
• Qualcomm Qcn9011
• Qualcomm Qcn9011 Firmware
• Qualcomm Qcn9012
• Qualcomm Qcn9012 Firmware
• Qualcomm Qcs8550
• Qualcomm Qcs8550 Firmware
• Qualcomm Qfw7114
• Qualcomm Qfw7114 Firmware
• Qualcomm Qfw7124
• Qualcomm Qfw7124 Firmware
• Qualcomm Qln1083bd
• Qualcomm Qln1083bd Firmware
• Qualcomm Qln1086bd
• Qualcomm Qln1086bd Firmware
• Qualcomm Qmp1000
• Qualcomm Qmp1000 Firmware
• Qualcomm Qpa1083bd
• Qualcomm Qpa1083bd Firmware
• Qualcomm Qpa1086bd
• Qualcomm Qpa1086bd Firmware
• Qualcomm Qxm1083
• Qualcomm Qxm1083 Firmware
• Qualcomm Qxm1086
• Qualcomm Qxm1086 Firmware
• Qualcomm Qxm1093
• Qualcomm Qxm1093 Firmware
• Qualcomm Qxm1094
• Qualcomm Qxm1094 Firmware
• Qualcomm Qxm1095
• Qualcomm Qxm1095 Firmware
• Qualcomm Qxm1096
• Qualcomm Qxm1096 Firmware
• Qualcomm Sar1165p
• Qualcomm Sar1165p Firmware
• Qualcomm Sar2130p
• Qualcomm Sar2130p Firmware
• Qualcomm Sc8380xp
• Qualcomm SC8380XP Firmware
• Qualcomm Sm6650p
• Qualcomm Sm6650p Firmware
• Qualcomm Sm7435
• Qualcomm Sm7435 Firmware
• Qualcomm Sm7635p
• Qualcomm Sm7635p Firmware
• Qualcomm Sm7675
• Qualcomm Sm7675 Firmware
• Qualcomm Sm7675p
• Qualcomm Sm7675p Firmware
• Qualcomm Sm8635
• Qualcomm Sm8635 Firmware
• Qualcomm Sm8635p
• Qualcomm Sm8635p Firmware
• Qualcomm Sm8650q
• Qualcomm Sm8650q Firmware
• Qualcomm Sm8750p
• Qualcomm Sm8750p Firmware
• Qualcomm Snapdragon 6 Gen 1 Mobile Platform
• Qualcomm Snapdragon 6 Gen 1 Mobile Platform Firmware
• Qualcomm Snapdragon 6 Gen 3 Mobile Platform
• Qualcomm Snapdragon 6 Gen 3 Mobile Platform Firmware
• Qualcomm Snapdragon 6 Gen 4 Mobile Platform
• Qualcomm Snapdragon 6 Gen 4 Mobile Platform Firmware
• Qualcomm Snapdragon 7s Gen 3 Mobile Platform
• Qualcomm Snapdragon 7s Gen 3 Mobile Platform Firmware
• Qualcomm Snapdragon 8 Elite
• Qualcomm Snapdragon 8 Elite Firmware
• Qualcomm Snapdragon 8 Elite Gen 5
• Qualcomm Snapdragon 8 Elite Gen 5 Firmware
• Qualcomm Snapdragon 8 Gen 3 Mobile Platform
• Qualcomm Snapdragon 8 Gen 3 Mobile Platform Firmware
• Qualcomm Snapdragon Ar1 Gen 1 Platform
• Qualcomm Snapdragon Ar1 Gen 1 Platform Firmware
• Qualcomm Snapdragon X72 5g Modem-Rf System
• Qualcomm Snapdragon X72 5g Modem-Rf System Firmware
• Qualcomm Snapdragon X75 5g Modem-Rf System
• Qualcomm Snapdragon X75 5g Modem-Rf System Firmware
• Qualcomm Sxr2230p
• Qualcomm Sxr2230p Firmware
• Qualcomm Sxr2250p
• Qualcomm Sxr2250p Firmware
• Qualcomm Sxr2330p
• Qualcomm Sxr2330p Firmware
• Qualcomm Sxr2350p
• Qualcomm Sxr2350p Firmware
• Qualcomm Wcd9340
• Qualcomm Wcd9340 Firmware
• Qualcomm Wcd9370
• Qualcomm Wcd9370 Firmware
• Qualcomm Wcd9375
• Qualcomm Wcd9375 Firmware
• Qualcomm Wcd9378
• Qualcomm Wcd9378 Firmware
• Qualcomm Wcd9378c
• Qualcomm Wcd9378c Firmware
• Qualcomm Wcd9380
• Qualcomm Wcd9380 Firmware
• Qualcomm Wcd9385
• Qualcomm Wcd9385 Firmware
• Qualcomm Wcd9390
• Qualcomm Wcd9390 Firmware
• Qualcomm Wcd9395
• Qualcomm Wcd9395 Firmware
• Qualcomm Wcn3988
• Qualcomm Wcn3988 Firmware
• Qualcomm Wcn6450
• Qualcomm Wcn6450 Firmware
• Qualcomm Wcn6650
• Qualcomm Wcn6650 Firmware
• Qualcomm Wcn6755
• Qualcomm Wcn6755 Firmware
• Qualcomm Wcn7860
• Qualcomm Wcn7860 Firmware
• Qualcomm Wcn7861
• Qualcomm Wcn7861 Firmware
• Qualcomm Wcn7880
• Qualcomm Wcn7880 Firmware
• Qualcomm Wcn7881
• Qualcomm Wcn7881 Firmware
• Qualcomm Wsa8810
• Qualcomm Wsa8810 Firmware
• Qualcomm Wsa8815
• Qualcomm Wsa8815 Firmware
• Qualcomm Wsa8830
• Qualcomm Wsa8830 Firmware
• Qualcomm Wsa8832
• Qualcomm Wsa8832 Firmware
• Qualcomm Wsa8835
• Qualcomm Wsa8835 Firmware
• Qualcomm Wsa8840
• Qualcomm Wsa8840 Firmware
• Qualcomm Wsa8845
• Qualcomm Wsa8845 Firmware
• Qualcomm Wsa8845h
• Qualcomm Wsa8845h Firmware
• Qualcomm X2000077
• Qualcomm X2000077 Firmware
• Qualcomm X2000086
• Qualcomm X2000086 Firmware
• Qualcomm X2000090
• Qualcomm X2000090 Firmware
• Qualcomm X2000092
• Qualcomm X2000092 Firmware
• Qualcomm X2000094
• Qualcomm X2000094 Firmware
• Qualcomm Xg101002
• Qualcomm Xg101002 Firmware
• Qualcomm Xg101032
• Qualcomm Xg101032 Firmware
• Qualcomm Xg101039
• Qualcomm Xg101039 Firmware
• Qualcomm Xrv7209
• Qualcomm Xrv7209 Firmware
• Qualcomm Xrv9209
• Qualcomm Xrv9209 Firmware