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CVE-2026-93807— wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已解决以下漏洞： wifi: rsi: 避免为非 TKIP 加密算法读取 TKIP MIC 密钥 函数在存在密钥数据时，总是从 和 处复制 和 。这些偏移量仅在 32 字节的 TKIP 密钥布局中有效。其他加密算法（如 CCMP）使用的较短密钥并不包含这些字节，因此无条件复制操作可能会越界读取已提供的密钥缓冲区。 本修复仅对 TKIP 加密算法复制 MIC 密钥，并拒绝长度短于预期 32 字节布局的畸形 TKIP 密钥。 [移除无用的长度检查]

AI Predicted 5.3 Difficulty: Theoretical EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux dad0d04fa7ba41ce603a01e8e64967650303e9a2< 6937b06d55b528e961feff8cc083b97ede622e02 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< ebd7172f8c4edc232738ef50338fb773c6f6c208 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 6b6690ac5c35e803df14afdc44312d11e8a60893 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 5207727e53fba1e3a6fce9b2c15b6b8b06c6438b affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 5902e3c08c63d65724772f74d65b9fb032625dca affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 55b86ef6c2e68879ffd95203b011ef42a013ab88 affected
dad0d04fa7ba41ce603a01e8e64967650303e9a2< 843fe9bc583b7686ca68312ac9319c9240a73c03 affected
3.15 affected
… +8 more rows
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I. Basic Information for CVE-2026-93807

Vulnerability Information
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Vulnerability Title
wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers rsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and data[24] whenever key data is present. Those offsets are only part of the 32-byte TKIP key layout. Shorter keys used by other ciphers, such as CCMP, do not provide those bytes, so the unconditional copies can read past the supplied key buffer. Only copy the MIC keys for TKIP, and reject malformed TKIP keys that are shorter than the expected 32-byte layout. [drop useless length check]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux dad0d04fa7ba41ce603a01e8e64967650303e9a2 ~ 6937b06d55b528e961feff8cc083b97ede622e02 -
Linux Linux 3.15 -

II. Public POCs for CVE-2026-93807

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III. Intelligence Information for CVE-2026-93807

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Patches & Fixes for CVE-2026-93807 (7)

Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total

CVE-2026-93207 9.8 CRITICAL SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry
CVE-2026-97413 9.8 CRITICAL RDMA/rtrs-srv: Fix integer underflow in process_read and process_write
CVE-2026-93228 9.1 CRITICAL svcrdma: Reject Write/Reply chunks with segcount 0
CVE-2026-93793 8.8 HIGH wifi: iwlwifi: mvm: validate TX_CMD response layout
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
CVE-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-97442 8.8 HIGH wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
CVE-2026-93806 8.8 HIGH wifi: cfg80211: validate assoc response length before status and IE access
CVE-2026-97509 8.8 HIGH thunderbolt: Keep XDomain reference during the lifetime of a service
CVE-2026-97409 8.8 HIGH nvme-fc: Do not cancel requests in io target before it is initialized
CVE-2026-93280 8.8 HIGH greybus: audio: bound the topology section sizes against the fetched size
CVE-2026-93284 8.8 HIGH drm/pagemap: dma-unmap pages before handling migration errors
CVE-2026-97451 8.4 HIGH ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
CVE-2026-97452 8.4 HIGH ACPICA: Prevent adding invalid references
CVE-2026-97455 8.4 HIGH ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
CVE-2026-97450 8.4 HIGH ACPICA: validate handler object type in two places
CVE-2026-93827 8.4 HIGH virtio-fs: avoid double-free on failed queue setup
CVE-2026-97433 8.2 HIGH nvme: validate FDP configuration descriptor sizes
CVE-2026-93224 8.1 HIGH svcrdma: Fix unmatched rn_unregister on failed accept
CVE-2026-93787 8.1 HIGH smb: client: bound dirent name against end of SMB response in cifs_filldir

Showing top 20 of 234 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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