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CVE-2025-39968— i40e: add max boundary check for VF filters

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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于缺少VF过滤器最大边界检查，可能导致越界访问。

CVSS 7.3 · High EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e284fc280473bed23f2e1ed324e102a48f7d17e1< 9176e18681cb0d34c5acc87bda224f5652af2ab8 affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< e490d8c5a54e0dd1ab22417d72c3a7319cf0f030 affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< 77a35be582dff4c80442ebcdce24d45eed8a6ce4 affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< 02aae5fcdd34c3a55a243d80a1b328a35852a35c affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< edecce7abd7152b48e279b4fa0a883d1839bb577 affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< d33e5d6631ac4fddda235a7815babc9d3f124299 affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< 8b13df5aa877b9e4541e301a58a84c42d84d2d9a affected
e284fc280473bed23f2e1ed324e102a48f7d17e1< cb79fa7118c150c3c76a327894bb2eb878c02619 affected
… +10 more rows
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I. Basic Information for CVE-2025-39968

Vulnerability Information
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Vulnerability Title
i40e: add max boundary check for VF filters
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i40e: add max boundary check for VF filters There is no check for max filters that VF can request. Add it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于缺少VF过滤器最大边界检查，可能导致越界访问。
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 e284fc280473bed23f2e1ed324e102a48f7d17e1 ~ 9176e18681cb0d34c5acc87bda224f5652af2ab8 -
Linux Linux 4.17 -

II. Public POCs for CVE-2025-39968

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III. Intelligence Information for CVE-2025-39968

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Same Patch Batch · Linux · 2025-10-15 · 34 CVEs total

CVE-2025-39975 9.8 CRITICAL smb: client: fix wrong index reference in smb2_compound_op()
CVE-2025-39969 8.8 HIGH i40e: fix validation of VF state in get resources
CVE-2025-39971 8.8 HIGH i40e: fix idx validation in config queues msg
CVE-2025-39973 8.8 HIGH i40e: add validation for ring_len param
CVE-2025-39970 8.8 HIGH i40e: fix input validation logic for action_meta
CVE-2025-39972 8.8 HIGH i40e: fix idx validation in i40e_validate_queue_map
CVE-2025-39982 8.8 HIGH Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync
CVE-2025-40000 8.8 HIGH wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait()
CVE-2025-39983 8.8 HIGH Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue
CVE-2025-39987 7.8 HIGH can: hi311x: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39976 7.8 HIGH futex: Use correct exit on failure from futex_hash_allocate_default()
CVE-2025-39977 7.8 HIGH futex: Prevent use-after-free during requeue-PI
CVE-2025-39978 7.8 HIGH octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
CVE-2025-39979 7.8 HIGH net/mlx5: fs, fix UAF in flow counter release
CVE-2025-39981 7.8 HIGH Bluetooth: MGMT: Fix possible UAFs
CVE-2025-39985 7.8 HIGH can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39986 7.8 HIGH can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39988 7.8 HIGH can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39990 7.8 HIGH bpf: Check the helper function is valid in get_helper_proto
CVE-2025-39993 7.8 HIGH media: rc: fix races with imon_disconnect()

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39968

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