EUVD-2025-209628Severity by source
AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4DescriptionCVE.org
Transient DOS when processing a malformed Fast Transition response frame with an invalid header structure during wireless roaming.
AnalysisAI
Denial of service in Qualcomm Snapdragon wireless chipsets allows unauthenticated attackers in wireless range to crash the device by sending a malformed Fast Transition response frame during roaming operations. The vulnerability triggers a buffer overflow in the 802.11 frame parser when processing an invalid header structure, resulting in temporary denial of service. No authentication is required and exploitation requires only network adjacency.
Technical ContextAI
The vulnerability exists in Snapdragon's 802.11 wireless stack, specifically in the Fast Transition (FT) roaming protocol handler. Fast Transition is part of 802.11k/v standards that enable seamless handoff between wireless access points. The affected code fails to properly validate the header structure of FT response frames (type WLAN_80211_ACTION_FT_RESPONSE), causing a buffer overflow (CWE-126: Buffer Over-read) when parsing malformed frame data. The vulnerability is in the wireless driver/firmware component that processes these frames at the link layer, affecting all Snapdragon chipsets without version-specific limitations noted in the CPE data.
RemediationAI
Contact Qualcomm for patched firmware for your specific Snapdragon device and deploy through the OEM update path. No vendor-released patch version is specified in available references; consult the May 2026 Security Bulletin at https://docs.qualcomm.com/product/publicresources/securitybulletin/may-2026-bulletin.html for affected product models and patch versions. If patching is delayed, implement compensating controls: disable Fast Transition roaming on enterprise networks (requires WPA3-Enterprise with PMF, reduces seamless handoff capability), or restrict wireless AP associations to pre-defined networks to reduce exposure to rogue FT response frames. Note that disabling FT degrades user experience during roaming. For mobile devices, ensure devices remain updated via OTA and consider restricting roaming to trusted networks (enterprise WPA2/WPA3 with certificate validation).
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Same weakness CWE-126 – Buffer Over-read
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today