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CVE-2026-80814— rndis_host: add overflow check in rndis_rx_fixup()

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.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于rndis_rx_fixup函数中缺少溢出检查，data_offset + data_len + 8可能发生回绕，导致USB数据缓冲区越界读取。

AI Predicted 7.2 Difficulty: Moderate EPSS 0.19% · P9

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 64e049102d3de3e61409cb6019403a9e689dfda6< 2140db1232af04b92faa6c4a2a40df6371ea89ff affected
64e049102d3de3e61409cb6019403a9e689dfda6< 8ca3bd404d076495ed0b274b65971c57b6fd5ac0 affected
64e049102d3de3e61409cb6019403a9e689dfda6< f8e6fde5db87f855e99b200e392467274f0eb9d7 affected
64e049102d3de3e61409cb6019403a9e689dfda6< 10a6b99079697c5027b25352e882bdf54fef702a affected
64e049102d3de3e61409cb6019403a9e689dfda6< c5398ce6db7647b7004d73a3102ccc25fb4bb596 affected
64e049102d3de3e61409cb6019403a9e689dfda6< e971d956353d382ee2185d71c47b538501a43f76 affected
64e049102d3de3e61409cb6019403a9e689dfda6< be7dc3650f799a253df4edd4fe230fc9ea4be063 affected
64e049102d3de3e61409cb6019403a9e689dfda6< 2ded89ca77fae1da6886fe94831acfe4d6aa80b1 affected
… +12 more rows
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I. Basic Information for CVE-2026-80814

Vulnerability Information
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Vulnerability Title
rndis_host: add overflow check in rndis_rx_fixup()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rndis_host: add overflow check in rndis_rx_fixup() Add an overflow check to ensure that data_offset + data_len + 8 does not wrap, which would enable an OOB read of the USB data buffer.
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于rndis_rx_fixup函数中缺少溢出检查，data_offset + data_len + 8可能发生回绕，导致USB数据缓冲区越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 64e049102d3de3e61409cb6019403a9e689dfda6 ~ 2140db1232af04b92faa6c4a2a40df6371ea89ff -
Linux Linux 2.6.14 -

II. Public POCs for CVE-2026-80814

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III. Intelligence Information for CVE-2026-80814

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Patches & Fixes for CVE-2026-80814 (7)

Vendor Advisories for CVE-2026-80814 (1)

Other References for CVE-2026-80814 (1)

Same Patch Batch · Linux · 2026-09-04 · 156 CVEs total

CVE-2026-80865 bpf: Add missing access_ok call to copy_user_syms
CVE-2026-80856 fuse: fix invalidate lock leak on setattr writeback failure
CVE-2026-80857 fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
CVE-2026-80858 fuse: publish io-uring queues with release semantics
CVE-2026-80859 fuse: fix missing barrier when checking io-uring readiness
CVE-2026-80860 fuse: fix race between interrupt and resend
CVE-2026-80861 usb: xhci: bail out of setup if the controller is inaccessible
CVE-2026-80862 nvme-tcp: fix usage of page_frag_cache
CVE-2026-80863 RDMA/rxe: Fix OOB in free_rd_atomic_resources()
CVE-2026-80864 RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp
CVE-2026-80870 drm/amdkfd: Validate CRIU-restored IDs before idr_alloc
CVE-2026-80874 arm64: dts: renesas: ironhide: Describe inline ECC carveouts
CVE-2026-80873 KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
CVE-2026-80872 ALSA: hda/tas2781: Cancel async firmware request at unbind
CVE-2026-80871 crypto: xilinx-trng - Remove crypto_rng interface
CVE-2026-80868 ntfs3: Allocate iomap inline_data using alloc_page
CVE-2026-80866 tipc: avoid busy looping in tipc_exit_net()
CVE-2026-80867 alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
CVE-2026-80855 fuse: fix invalidate lock leak on open O_TRUNC DAX failure
CVE-2026-80869 ntfs: bound the attribute-list entry in ntfs_read_inode_mount()

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80814

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