Wireless service interruption via oversized authentication element
Published Feb 2, 2026 · Updated Feb 2, 2026
Buffer over-read in Qualcomm Snapdragon WLAN firmware allows attackers to interrupt wireless service with an oversized authentication element. The frame parser trusts the authentication information-element length while processing a received WLAN frame and reads beyond the available buffer. An unauthenticated transmitter within WLAN radio range can trigger a transient firmware failure without user interaction; no data disclosure or modification is reported.
Summary
What happened
Buffer over-read in Qualcomm Snapdragon WLAN firmware allows attackers to interrupt wireless service with an oversized authentication element. The frame parser trusts the authentication information-element length while processing a received WLAN frame and reads beyond the available buffer. An unauthenticated transmitter within WLAN radio range can trigger a transient firmware failure without user interaction; no data disclosure or modification is reported.
The record
- CVE
- CVE-2025-47402
- Published
- Feb 2, 2026
- Updated
- Feb 2, 2026
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-126, T1499.004
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 2, 2026CVE publishedPublication date reported by the CVE source.
- Feb 2, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=AR8035
- Affected versionversion=Cologne
- Affected versionversion=FastConnect 6900
- Affected versionversion=FastConnect 7800
- Affected versionversion=FWA Gen 3 Ultra Platform
- Affected versionversion=LeMansAU
- Affected versionversion=LeMans_AU_LGIT
- Affected versionversion=Orne
- Affected versionversion=Palawan25
- Affected versionversion=QAM8255P
- Affected versionversion=QAMSRV1H
- Affected versionversion=QAMSRV1M
- Affected versionversion=QCA6391
- Affected versionversion=QCA6554A
- Affected versionversion=QCA6564AU
- Affected versionversion=QCA6574
- Affected versionversion=QCA6574A
- Affected versionversion=QCA6574AU
- Affected versionversion=QCA6584AU
- Affected versionversion=QCA6595
- Affected versionversion=QCA6595AU
- Affected versionversion=QCA6678AQ
- Affected versionversion=QCA6688AQ
- Affected versionversion=QCA6696
- Affected versionversion=QCA6698AQ
- Affected versionversion=QCA6698AU
- Affected versionversion=QCA6777AQ
- Affected versionversion=QCA6787AQ
- Affected versionversion=QCA6797AQ
- Affected versionversion=QCA8081
- Affected versionversion=QCA8337
- Affected versionversion=QCC2073
- Affected versionversion=QCC2076
- Affected versionversion=QCC710
- Affected versionversion=QCN6224
- Affected versionversion=QCN6274
- Affected versionversion=QCN9011
- Affected versionversion=QCN9012
- Affected versionversion=QCS8550
- Affected versionversion=QFW7114
- Affected versionversion=QFW7124
- Affected versionversion=QMP1000
- Affected versionversion=SA7255P
- Affected versionversion=SA7775P
- Affected versionversion=SA8255P
- Affected versionversion=SA8620P
- Affected versionversion=SA8770P
- Affected versionversion=SA9000P
- Affected versionversion=SAR2130P
- Affected versionversion=SM7675
- Affected versionversion=SM7675P
- Affected versionversion=SM8635
- Affected versionversion=SM8635P
- Affected versionversion=SM8650Q
- Affected versionversion=SM8750P
- Affected versionversion=Snapdragon 8 Elite
- Affected versionversion=Snapdragon 8 Gen 3 Mobile Platform
- Affected versionversion=Snapdragon Auto 5G Modem-RF Gen 2
- Affected versionversion=Snapdragon X72 5G Modem-RF System
- Affected versionversion=Snapdragon X75 5G Modem-RF System
- Affected versionversion=SRV1H
- Affected versionversion=SRV1M
- Affected versionversion=SSG2115P
- Affected versionversion=SSG2125P
- Affected versionversion=SXR1230P
- Affected versionversion=SXR2250P
- Affected versionversion=WCD9340
- Affected versionversion=WCD9370
- Affected versionversion=WCD9375
- Affected versionversion=WCD9378
- Affected versionversion=WCD9378C
- Affected versionversion=WCD9380
- Affected versionversion=WCD9385
- Affected versionversion=WCD9390
- Affected versionversion=WCD9395
- Affected versionversion=WCN6755
- Affected versionversion=WCN7860
- Affected versionversion=WCN7861
- Affected versionversion=WCN7880
- Affected versionversion=WCN7881
- Affected versionversion=WSA8830
- Affected versionversion=WSA8832
- Affected versionversion=WSA8835
- Affected versionversion=WSA8840
- Affected versionversion=WSA8845
- Affected versionversion=WSA8845H
- Affected versionversion=X2000077
- Affected versionversion=X2000086
- Affected versionversion=X2000090
- Affected versionversion=X2000092
- Affected versionversion=X2000094
- Affected versionversion=XG101002
- Affected versionversion=XG101032
- Affected versionversion=XG101039
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo