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CVE-2026-64505— usb: gadget: function: rndis: add length check for header

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基金会开源的一款操作系统内核。 Linux kernel 2.6.12版本存在安全漏洞，该漏洞源于rndis_rm_hdr函数对rndis header缺少长度检查，可能导致越界读取。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.22% · P13

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 6cdee106e7571751ecc0e9f96606322f88b64a8d< 200dd5092296ad4d5ae47f8445a2fb1edd1da973 affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< 9ffd567d7bf269824dfac06f8ab9a32fef72699b affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< b73c0142e3acdc063b50c33afb7be19cdb2cd410 affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< d6ef5af7d0fe1ac31e5653a77e6d775dd36bc433 affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< ba2cc601e59fe68716646199a33303493513e2e3 affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< 7515a6d4a9e9e4838b833825882efa00e85f8901 affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< 9facd79028a7807879eb441d12f0e00720980aa3 affected
6cdee106e7571751ecc0e9f96606322f88b64a8d< 21b5bf155435008e0fb0736795289788e63d426f affected
… +10 more rows
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I. Basic Information for CVE-2026-64505

Vulnerability Information
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Vulnerability Title
usb: gadget: function: rndis: add length check for header
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: function: rndis: add length check for header Add a length check for the rndis header in rndis_rm_hdr, to ensure that MessageType, MessageLength, DataOffset, and DataLength fields are present before they are accessed.
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基金会开源的一款操作系统内核。 Linux kernel 2.6.12版本存在安全漏洞，该漏洞源于rndis_rm_hdr函数对rndis header缺少长度检查，可能导致越界读取。
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 6cdee106e7571751ecc0e9f96606322f88b64a8d ~ 200dd5092296ad4d5ae47f8445a2fb1edd1da973 -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2026-64505

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III. Intelligence Information for CVE-2026-64505

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Patches & Fixes for CVE-2026-64505 (7)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-64391 9.8 CRITICAL ksmbd: use opener credentials for ADS I/O
CVE-2026-64268 9.8 CRITICAL RDMA/siw: bound Read Response placement to the RREAD length
CVE-2026-64384 9.8 CRITICAL smb: client: fix change notify replay double-free
CVE-2026-64383 9.8 CRITICAL smb: client: fix double-free in SMB2_flush() replay
CVE-2026-64385 9.8 CRITICAL smb: client: fix double-free in SMB2_ioctl() replay
CVE-2026-64386 9.8 CRITICAL smb: client: fix query_info() replay double-free
CVE-2026-64387 9.8 CRITICAL smb: client: fix query directory replay double-free
CVE-2026-64439 9.8 CRITICAL crypto: krb5 - filter out async aead implementations at alloc
CVE-2026-64303 9.8 CRITICAL spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVE-2026-64355 9.8 CRITICAL bpf: Reject fragmented frames in devmap
CVE-2026-64459 9.8 CRITICAL tcp: restore RCU grace period in tcp_ao_destroy_sock
CVE-2026-64399 9.8 CRITICAL ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE
CVE-2026-64410 9.8 CRITICAL netfilter: flowtable: IPIP tunnel hardware offload is not yet support
CVE-2026-64397 9.8 CRITICAL ksmbd: serialize QUERY_DIRECTORY requests per file
CVE-2026-64523 9.8 CRITICAL net/handshake: Take a long-lived file reference at submit
CVE-2026-64320 9.1 CRITICAL nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page
CVE-2026-64392 9.1 CRITICAL ksmbd: use opener credentials for delete-on-close
CVE-2026-64269 9.1 CRITICAL RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CVE-2026-64393 9.1 CRITICAL ksmbd: run set info with opener credentials
CVE-2026-64319 9.1 CRITICAL nvmet-auth: validate reply message payload bounds against transfer length

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64505

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