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CVE-2026-93797— wifi: iwlwifi: mvm: fix an off-by-1 boundary check

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，已修复以下漏洞： wifi: iwlwifi: mvm: 修复边界检查中的 off-by-1 错误 在检查第 11 个字节之前，应先验证数据长度是否足够。

AI Predicted 6.6 Difficulty: Moderate EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< 2c8c06c59ed72a42e4d32e222542b582b4911459 affected
4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< 23d3fddddd2bcedb4fd6cec5bef16b1fbb563019 affected
4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< 45fcdbae679861b90f08964a0c3e9eead3bacd6f affected
4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< 7a2d4efea2c41b49db90907c8b6f37f8b63a9f50 affected
4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< 1e3b72c9b63288a5f204e2c8f38eae01515d7dc5 affected
4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< 4d60332387336088e66cc8f1e71e516b6b872ef9 affected
4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4< d77aff138c9ec6c8562f4c2c9f262d3d9c4b4cb8 affected
5.4 affected
… +8 more rows
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I. Basic Information for CVE-2026-93797

Vulnerability Information
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Vulnerability Title
wifi: iwlwifi: mvm: fix an off-by-1 boundary check
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix an off-by-1 boundary check Before looking at the 11th byte, check the length is big enough.
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 4f58121dc40a1d5dd2f630a5ec4dac5afa1ce3f4 ~ 2c8c06c59ed72a42e4d32e222542b582b4911459 -
Linux Linux 5.4 -

II. Public POCs for CVE-2026-93797

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III. Intelligence Information for CVE-2026-93797

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Patches & Fixes for CVE-2026-93797 (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-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA 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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