CVE-2026-21381

🗓️ 06 Apr 2026 15:33:55Reported by qualcommType

Buffer over-read in WLAN firmware causes denial of service from oversized service data frames during device matching.

Reporter	Title	Published	Views	Family All 10
BDU FSTEC	The vulnerability of embedded software developed by Qualcomm, related to the execution of operations outside of the buffer in memory, allows attackers to compromise the confidentiality, integrity, and accessibility of information.	13 Apr 202600:00	–	bdu_fstec
Circl	CVE-2026-21381	6 Apr 202616:24	–	circl
CNNVD	Qualcomm Chipsets 安全漏洞	6 Apr 202600:00	–	cnnvd
Cvelist	CVE-2026-21381 Buffer Over-read in WLAN Firmware	6 Apr 202615:33	–	cvelist
EUVD	EUVD-2026-19337	6 Apr 202618:33	–	euvd
NCSC	Vulnerabilities found in Google Android and Samsung Mobile devices	2 Jun 202608:00	–	ncsc
NVD	CVE-2026-21381	6 Apr 202616:16	–	nvd
Positive Technologies	PT-2026-30649	6 Apr 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-21381	7 Apr 202617:03	–	redhatcve
Vulnrichment	CVE-2026-21381 Buffer Over-read in WLAN Firmware	6 Apr 202615:33	–	vulnrichment

NVD

Node

qualcomm sxr2250p_firmwareMatch-

AND

qualcomm sxr2250pMatch-

Node

qualcomm sxr2330p_firmwareMatch-

AND

qualcomm sxr2330pMatch-

Node

qualcomm sxr2350p_firmwareMatch-

AND

qualcomm sxr2350pMatch-

Node

qualcomm sxr2230p_firmwareMatch-

AND

qualcomm sxr2230pMatch-

Node

qualcomm snapdragon_x75_5g_modem-rf_system_firmwareMatch-

AND

qualcomm snapdragon_x75_5g_modem-rf_systemMatch-

Node

qualcomm snapdragon_x72_5g_modem-rf_system_firmwareMatch-

AND

qualcomm snapdragon_x72_5g_modem-rf_systemMatch-

Node

qualcomm snapdragon_ar1+_gen_1_platform_firmwareMatch-

AND

qualcomm snapdragon_ar1+_gen_1_platformMatch-

Node

qualcomm wcn6450_firmwareMatch-

AND

qualcomm wcn6450Match-

Node

qualcomm wcn6650_firmwareMatch-

AND

qualcomm wcn6650Match-

Node

qualcomm wcn6755_firmwareMatch-

AND

qualcomm wcn6755Match-

Node

qualcomm wcn7860_firmwareMatch-

AND

qualcomm wcn7860Match-

Node

qualcomm wcn7861_firmwareMatch-

AND

qualcomm wcn7861Match-

Node

qualcomm wcn7880_firmwareMatch-

AND

qualcomm wcn7880Match-

Node

qualcomm wcn7881_firmwareMatch-

AND

qualcomm wcn7881Match-

Node

qualcomm x2000092_firmwareMatch-

AND

qualcomm x2000092Match-

Node

qualcomm wsa8810_firmwareMatch-

AND

qualcomm wsa8810Match-

Node

qualcomm wsa8815_firmwareMatch-

AND

qualcomm wsa8815Match-

Node

qualcomm wsa8830_firmwareMatch-

AND

qualcomm wsa8830Match-

Node

qualcomm wcd9380_firmwareMatch-

AND

qualcomm wcd9380Match-

Node

qualcomm wcd9385_firmwareMatch-

AND

qualcomm wcd9385Match-

Node

qualcomm wcd9390_firmwareMatch-

AND

qualcomm wcd9390Match-

Node

qualcomm wcd9395_firmwareMatch-

AND

qualcomm wcd9395Match-

Node

qualcomm wcn3988_firmwareMatch-

AND

qualcomm wcn3988Match-

Node

qualcomm wsa8832_firmwareMatch-

AND

qualcomm wsa8832Match-

Node

qualcomm wsa8835_firmwareMatch-

AND

qualcomm wsa8835Match-

Node

qualcomm wsa8840_firmwareMatch-

AND

qualcomm wsa8840Match-

Node

qualcomm wsa8845_firmwareMatch-

AND

qualcomm wsa8845Match-

Node

qualcomm wsa8845h_firmwareMatch-

AND

qualcomm wsa8845hMatch-

Node

qualcomm x2000077_firmwareMatch-

AND

qualcomm x2000077Match-

Node

qualcomm x2000086_firmwareMatch-

AND

qualcomm x2000086Match-

Node

qualcomm x2000090_firmwareMatch-

AND

qualcomm x2000090Match-

Node

qualcomm x2000094_firmwareMatch-

AND

qualcomm x2000094Match-

Node

qualcomm xg101002_firmwareMatch-

AND

qualcomm xg101002Match-

Node

qualcomm xg101032_firmwareMatch-

AND

qualcomm xg101032Match-

Node

qualcomm xg101039_firmwareMatch-

AND

qualcomm xg101039Match-

Node

qualcomm xrv7209_firmwareMatch-

AND

qualcomm xrv7209Match-

Node

qualcomm xrv9209_firmwareMatch-

AND

qualcomm xrv9209Match-

Node

qualcomm ar8035_firmwareMatch-

AND

qualcomm ar8035Match-

Node

qualcomm cologne_firmwareMatch-

AND

qualcomm cologneMatch-

Node

qualcomm fastconnect_6200_firmwareMatch-

AND

qualcomm fastconnect_6200Match-

Node

qualcomm fastconnect_6700_firmwareMatch-

AND

qualcomm fastconnect_6700Match-

Node

qualcomm fastconnect_6900_firmwareMatch-

AND

qualcomm fastconnect_6900Match-

Node

qualcomm fastconnect_7800_firmwareMatch-

AND

qualcomm fastconnect_7800Match-

Node

qualcomm fwa_gen_3_ultra_firmwareMatch-

AND

qualcomm fwa_gen_3_ultraMatch-

Node

qualcomm g2_gen_1_firmwareMatch-

AND

qualcomm g2_gen_1Match-

Node

qualcomm milos_firmwareMatch-

AND

qualcomm milosMatch-

Node

qualcomm netrani_firmwareMatch-

AND

qualcomm netraniMatch-

Node

qualcomm orne_firmwareMatch-

AND

qualcomm orneMatch-

Node

qualcomm palawan25_firmwareMatch-

AND

qualcomm palawan25Match-

Node

qualcomm pandeiro_firmwareMatch-

AND

qualcomm pandeiroMatch-

Node

qualcomm qcn6274_firmwareMatch-

AND

qualcomm qcn6274Match-

Node

qualcomm qxm1086_firmwareMatch-

AND

qualcomm qxm1086Match-

Node

qualcomm sm7675p_firmwareMatch-

AND

qualcomm sm7675pMatch-

Node

qualcomm snapdragon_8_gen_3_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_8_gen_3_mobile_platformMatch-

Node

qualcomm snapdragon_ar1_gen_1_platform_firmwareMatch-

AND

qualcomm snapdragon_ar1_gen_1_platformMatch-

Node

qualcomm wcd9340_firmwareMatch-

AND

qualcomm wcd9340Match-

Node

qualcomm wcd9370_firmwareMatch-

AND

qualcomm wcd9370Match-

Node

qualcomm wcd9375_firmwareMatch-

AND

qualcomm wcd9375Match-

Node

qualcomm qca6391_firmwareMatch-

AND

qualcomm qca6391Match-

Node

qualcomm qca6698au_firmwareMatch-

AND

qualcomm qca6698auMatch-

Node

qualcomm qca6777aq_firmwareMatch-

AND

qualcomm qca6777aqMatch-

Node

qualcomm qca6787aq_firmwareMatch-

AND

qualcomm qca6787aqMatch-

Node

qualcomm qca6797aq_firmwareMatch-

AND

qualcomm qca6797aqMatch-

Node

qualcomm qca8081_firmwareMatch-

AND

qualcomm qca8081Match-

Node

qualcomm qca8337_firmwareMatch-

AND

qualcomm qca8337Match-

Node

qualcomm qcc2073_firmwareMatch-

AND

qualcomm qcc2073Match-

Node

qualcomm qcc2076_firmwareMatch-

AND

qualcomm qcc2076Match-

Node

qualcomm qcc710_firmwareMatch-

AND

qualcomm qcc710Match-

Node

qualcomm qcn6224_firmwareMatch-

AND

qualcomm qcn6224Match-

Node

qualcomm wcd9378_firmwareMatch-

AND

qualcomm wcd9378Match-

Node

qualcomm wcd9378c_firmwareMatch-

AND

qualcomm wcd9378cMatch-

Node

qualcomm qcn9011_firmwareMatch-

AND

qualcomm qcn9011Match-

Node

qualcomm qcn9012_firmwareMatch-

AND

qualcomm qcn9012Match-

Node

qualcomm qcs8550_firmwareMatch-

AND

qualcomm qcs8550Match-

Node

qualcomm qfw7114_firmwareMatch-

AND

qualcomm qfw7114Match-

Node

qualcomm qfw7124_firmwareMatch-

AND

qualcomm qfw7124Match-

Node

qualcomm qln1083bd_firmwareMatch-

AND

qualcomm qln1083bdMatch-

Node

qualcomm qln1086bd_firmwareMatch-

AND

qualcomm qln1086bdMatch-

Node

qualcomm qmp1000_firmwareMatch-

AND

qualcomm qmp1000Match-

Node

qualcomm qpa1083bd_firmwareMatch-

AND

qualcomm qpa1083bdMatch-

Node

qualcomm qpa1086bd_firmwareMatch-

AND

qualcomm qpa1086bdMatch-

Node

qualcomm qxm1083_firmwareMatch-

AND

qualcomm qxm1083Match-

Node

qualcomm qxm1093_firmwareMatch-

AND

qualcomm qxm1093Match-

Node

qualcomm qxm1094_firmwareMatch-

AND

qualcomm qxm1094Match-

Node

qualcomm qxm1095_firmwareMatch-

AND

qualcomm qxm1095Match-

Node

qualcomm qxm1096_firmwareMatch-

AND

qualcomm qxm1096Match-

Node

qualcomm sar1165p_firmwareMatch-

AND

qualcomm sar1165pMatch-

Node

qualcomm sar2130p_firmwareMatch-

AND

qualcomm sar2130pMatch-

Node

qualcomm sc8380xp_firmwareMatch-

AND

qualcomm sc8380xpMatch-

Node

qualcomm sm6650p_firmwareMatch-

AND

qualcomm sm6650pMatch-

Node

qualcomm sm7435_firmwareMatch-

AND

qualcomm sm7435Match-

Node

qualcomm sm7635p_firmwareMatch-

AND

qualcomm sm7635pMatch-

Node

qualcomm sm7675_firmwareMatch-

AND

qualcomm sm7675Match-

Node

qualcomm sm8635_firmwareMatch-

AND

qualcomm sm8635Match-

Node

qualcomm sm8635p_firmwareMatch-

AND

qualcomm sm8635pMatch-

Node

qualcomm sm8650q_firmwareMatch-

AND

qualcomm sm8650qMatch-

Node

qualcomm sm8750p_firmwareMatch-

AND

qualcomm sm8750pMatch-

Node

qualcomm snapdragon_6_gen_1_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_6_gen_1_mobile_platformMatch-

Node

qualcomm snapdragon_6_gen_3_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_6_gen_3_mobile_platformMatch-

Node

qualcomm snapdragon_6_gen_4_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_6_gen_4_mobile_platformMatch-

Node

qualcomm snapdragon_7s_gen_3_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_7s_gen_3_mobile_platformMatch-

Node

qualcomm snapdragon_8_elite_firmwareMatch-

AND

qualcomm snapdragon_8_eliteMatch-

Node

qualcomm snapdragon_8_elite_gen_5_firmwareMatch-

AND

qualcomm snapdragon_8_elite_gen_5Match-

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Snapdragon Auto",
      "Snapdragon CCW",
      "Snapdragon Compute",
      "Snapdragon Consumer Electronics Connectivity",
      "Snapdragon Consumer IOT",
      "Snapdragon Industrial IOT",
      "Snapdragon MC",
      "Snapdragon Mobile",
      "Snapdragon WBC"
    ],
    "product": "Snapdragon",
    "vendor": "Qualcomm, Inc.",
    "versions": [
      {
        "status": "affected",
        "version": "AR8035"
      },
      {
        "status": "affected",
        "version": "Cologne"
      },
      {
        "status": "affected",
        "version": "FastConnect 6200"
      },
      {
        "status": "affected",
        "version": "FastConnect 6700"
      },
      {
        "status": "affected",
        "version": "FastConnect 6900"
      },
      {
        "status": "affected",
        "version": "FastConnect 7800"
      },
      {
        "status": "affected",
        "version": "FWA Gen 3 Ultra Platform"
      },
      {
        "status": "affected",
        "version": "G2 Gen 1"
      },
      {
        "status": "affected",
        "version": "Milos"
      },
      {
        "status": "affected",
        "version": "Netrani"
      },
      {
        "status": "affected",
        "version": "Orne"
      },
      {
        "status": "affected",
        "version": "Palawan25"
      },
      {
        "status": "affected",
        "version": "Pandeiro"
      },
      {
        "status": "affected",
        "version": "QCA6391"
      },
      {
        "status": "affected",
        "version": "QCA6698AU"
      },
      {
        "status": "affected",
        "version": "QCA6777AQ"
      },
      {
        "status": "affected",
        "version": "QCA6787AQ"
      },
      {
        "status": "affected",
        "version": "QCA6797AQ"
      },
      {
        "status": "affected",
        "version": "QCA8081"
      },
      {
        "status": "affected",
        "version": "QCA8337"
      },
      {
        "status": "affected",
        "version": "QCC2073"
      },
      {
        "status": "affected",
        "version": "QCC2076"
      },
      {
        "status": "affected",
        "version": "QCC710"
      },
      {
        "status": "affected",
        "version": "QCN6224"
      },
      {
        "status": "affected",
        "version": "QCN6274"
      },
      {
        "status": "affected",
        "version": "QCN9011"
      },
      {
        "status": "affected",
        "version": "QCN9012"
      },
      {
        "status": "affected",
        "version": "QCS8550"
      },
      {
        "status": "affected",
        "version": "QFW7114"
      },
      {
        "status": "affected",
        "version": "QFW7124"
      },
      {
        "status": "affected",
        "version": "QLN1083BD"
      },
      {
        "status": "affected",
        "version": "QLN1086BD"
      },
      {
        "status": "affected",
        "version": "QMP1000"
      },
      {
        "status": "affected",
        "version": "QPA1083BD"
      },
      {
        "status": "affected",
        "version": "QPA1086BD"
      },
      {
        "status": "affected",
        "version": "QXM1083"
      },
      {
        "status": "affected",
        "version": "QXM1086"
      },
      {
        "status": "affected",
        "version": "QXM1093"
      },
      {
        "status": "affected",
        "version": "QXM1094"
      },
      {
        "status": "affected",
        "version": "QXM1095"
      },
      {
        "status": "affected",
        "version": "QXM1096"
      },
      {
        "status": "affected",
        "version": "SAR1165P"
      },
      {
        "status": "affected",
        "version": "SAR2130P"
      },
      {
        "status": "affected",
        "version": "SC8380XP"
      },
      {
        "status": "affected",
        "version": "SM6650P"
      },
      {
        "status": "affected",
        "version": "SM7435"
      },
      {
        "status": "affected",
        "version": "SM7635P"
      },
      {
        "status": "affected",
        "version": "SM7675"
      },
      {
        "status": "affected",
        "version": "SM7675P"
      },
      {
        "status": "affected",
        "version": "SM8635"
      },
      {
        "status": "affected",
        "version": "SM8635P"
      },
      {
        "status": "affected",
        "version": "SM8650Q"
      },
      {
        "status": "affected",
        "version": "SM8750P"
      },
      {
        "status": "affected",
        "version": "Snapdragon 6 Gen 1 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 6 Gen 3 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 6 Gen 4 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 7s Gen 3 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 8 Elite"
      },
      {
        "status": "affected",
        "version": "Snapdragon 8 Elite Gen 5"
      },
      {
        "status": "affected",
        "version": "Snapdragon 8 Gen 3 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon AR1 Gen 1 Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon AR1+ Gen 1 Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon X72 5G Modem-RF System"
      },
      {
        "status": "affected",
        "version": "Snapdragon X75 5G Modem-RF System"
      },
      {
        "status": "affected",
        "version": "SXR2230P"
      },
      {
        "status": "affected",
        "version": "SXR2250P"
      },
      {
        "status": "affected",
        "version": "SXR2330P"
      },
      {
        "status": "affected",
        "version": "SXR2350P"
      },
      {
        "status": "affected",
        "version": "WCD9340"
      },
      {
        "status": "affected",
        "version": "WCD9370"
      },
      {
        "status": "affected",
        "version": "WCD9375"
      },
      {
        "status": "affected",
        "version": "WCD9378"
      },
      {
        "status": "affected",
        "version": "WCD9378C"
      },
      {
        "status": "affected",
        "version": "WCD9380"
      },
      {
        "status": "affected",
        "version": "WCD9385"
      },
      {
        "status": "affected",
        "version": "WCD9390"
      },
      {
        "status": "affected",
        "version": "WCD9395"
      },
      {
        "status": "affected",
        "version": "WCN3988"
      },
      {
        "status": "affected",
        "version": "WCN6450"
      },
      {
        "status": "affected",
        "version": "WCN6650"
      },
      {
        "status": "affected",
        "version": "WCN6755"
      },
      {
        "status": "affected",
        "version": "WCN7860"
      },
      {
        "status": "affected",
        "version": "WCN7861"
      },
      {
        "status": "affected",
        "version": "WCN7880"
      },
      {
        "status": "affected",
        "version": "WCN7881"
      },
      {
        "status": "affected",
        "version": "WSA8810"
      },
      {
        "status": "affected",
        "version": "WSA8815"
      },
      {
        "status": "affected",
        "version": "WSA8830"
      },
      {
        "status": "affected",
        "version": "WSA8832"
      },
      {
        "status": "affected",
        "version": "WSA8835"
      },
      {
        "status": "affected",
        "version": "WSA8840"
      },
      {
        "status": "affected",
        "version": "WSA8845"
      },
      {
        "status": "affected",
        "version": "WSA8845H"
      },
      {
        "status": "affected",
        "version": "X2000077"
      },
      {
        "status": "affected",
        "version": "X2000086"
      },
      {
        "status": "affected",
        "version": "X2000090"
      },
      {
        "status": "affected",
        "version": "X2000092"
      },
      {
        "status": "affected",
        "version": "X2000094"
      },
      {
        "status": "affected",
        "version": "XG101002"
      },
      {
        "status": "affected",
        "version": "XG101032"
      },
      {
        "status": "affected",
        "version": "XG101039"
      },
      {
        "status": "affected",
        "version": "XRV7209"
      },
      {
        "status": "affected",
        "version": "XRV9209"
      }
    ]
  }
]

Source	Link
docs	www.docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html

17 Jun 2026 10:18Current

5.9Medium risk

Vulners AI Score5.9

CVSS 3.17.5 - 7.6

EPSS0.00149

SSVC

CWE-126