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01 Record

CVE-2026-21381

Buffer Over-read in WLAN Firmware

HighPUBLISHEDCNA: qualcomm
CNA base score7.6 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
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02 Description

Buffer Over-read in WLAN Firmware

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.14% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 4.0% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-26.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-06 15:33Z6 MO AGO
Last updated
2026-04-06 16:22Z6 MO AGO
Reserved
2025-12-17
Assigning CNA
qualcomm
Record state
PUBLISHED
Severity
High (CVSS 7.6)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weaknesses
Data version
5.2
Document digest
7d9eb7a0184cf96319de9967b0c1a77a126421b67c193ed1b562d91871a6d7a1

05 Affected products

VendorProductVersionsPlatforms
Qualcomm, Inc.SnapdragonAR8035, Cologne, FastConnect 6200, FastConnect 6700, FastConnect 6900, FastConnect 7800, FWA Gen 3 Ultra Platform, G2 Gen 1, Milos, Netrani, Orne, Palawan25, Pandeiro, QCA6391, QCA6698AU, QCA6777AQ, QCA6787AQ, QCA6797AQ, QCA8081, QCA8337, QCC2073, QCC2076, QCC710, QCN6224, QCN6274, QCN9011, QCN9012, QCS8550, QFW7114, QFW7124, QLN1083BD, QLN1086BD, QMP1000, QPA1083BD, QPA1086BD, QXM1083, QXM1086, QXM1093, QXM1094, QXM1095, QXM1096, SAR1165P, SAR2130P, SC8380XP, SM6650P, SM7435, SM7635P, SM7675, SM7675P, SM8635, SM8635P, SM8650Q, SM8750P, Snapdragon 6 Gen 1 Mobile Platform, Snapdragon 6 Gen 3 Mobile Platform, Snapdragon 6 Gen 4 Mobile Platform, Snapdragon 7s Gen 3 Mobile Platform, Snapdragon 8 Elite, Snapdragon 8 Elite Gen 5, Snapdragon 8 Gen 3 Mobile Platform, Snapdragon AR1 Gen 1 Platform, Snapdragon AR1+ Gen 1 Platform, Snapdragon X72 5G Modem-RF System, Snapdragon X75 5G Modem-RF System, SXR2230P, SXR2250P, SXR2330P, SXR2350P, WCD9340, WCD9370, WCD9375, WCD9378, WCD9378C, WCD9380, WCD9385, WCD9390, WCD9395, WCN3988, WCN6450, WCN6650, WCN6755, WCN7860, WCN7861, WCN7880, WCN7881, WSA8810, WSA8815, WSA8830, WSA8832, WSA8835, WSA8840, WSA8845, WSA8845H, X2000077, X2000086, X2000090, X2000092, X2000094, XG101002, XG101032, XG101039, XRV7209, XRV9209Snapdragon Auto, Snapdragon CCW, Snapdragon Compute, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon MC, Snapdragon Mobile, Snapdragon WBC

06 References