High severity · published Apr 6, 2026
CVE-2026-21381
Buffer Over-read in WLAN Firmware
7.5
CVSS
0.1%
EPSS
No
On KEV
Description
Transient DOS when receiving a service data frame with excessive length during device matching over a neighborhood awareness network protocol connection.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SN
Snapdragon · Qualcomm, Inc.
AR8035; Cologne; FastConnect 6200; FastConnect 6700; FastConnect 6900; FastConnect 7800; +34 more · source: vendor
AF
Ar8035 Firmware · Qualcomm
All versions, or not specified · source: NVD
CF
Cologne Firmware · Qualcomm
All versions, or not specified · source: NVD
F6
Fastconnect 6200 Firmware · Qualcomm
All versions, or not specified · source: NVD
F6
Fastconnect 6700 Firmware · Qualcomm
All versions, or not specified · source: NVD
F6
Fastconnect 6900 Firmware · Qualcomm
All versions, or not specified · source: NVD
F7
Fastconnect 7800 Firmware · Qualcomm
All versions, or not specified · source: NVD
FG
Fwa Gen 3 Ultra Firmware · Qualcomm
All versions, or not specified · source: NVD
GG
G2 Gen 1 Firmware · Qualcomm
All versions, or not specified · source: NVD
MF
Milos Firmware · Qualcomm
All versions, or not specified · source: NVD
NF
Netrani Firmware · Qualcomm
All versions, or not specified · source: NVD
OF
Orne Firmware · Qualcomm
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21381
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21381
Vendor Advisory
https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html
More from Snapdragon
8.6
CVE-2025-21479
Incorrect Authorization in Graphics
8.6
CVE-2025-21480
Incorrect Authorization in Graphics Windows
7.8
CVE-2026-21385
Integer Overflow or Wraparound in Graphics
7.8
CVE-2024-43047
Use After Free in DSP Service
7.8
CVE-2023-33107
Integer Overflow or Wraparound in Graphics Linux