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CVE-2025-68803— NFSD: NFSv4 file creation neglects setting ACL

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，该漏洞源于创建文件时未检查POSIX ACL属性，导致ACL设置失败。

CVSS 8.0 · High EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux c5409ce523af40d5c3019717bc5b4f72038d48be< c182e1e0b7640f6bcc0c5ca8d473f7c57199ea3d affected
d52acd23a327cada5fb597591267cfc09f08bb1d< 75f91534f9acdfef77f8fa094313b7806f801725 affected
c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b< 60dbdef2ebc2317266a385e4debdb1bb0e57afe1 affected
c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b< 381261f24f4e4b41521c0e5ef5cc0b9a786a9862 affected
c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b< bf4e671c651534a307ab2fabba4926116beef8c3 affected
c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b< 214b396480061cbc8b16f2c518b2add7fbfa5192 affected
c0cbe70742f4a70893cd6e5f6b10b6e89b6db95b< 913f7cf77bf14c13cfea70e89bcb6d0b22239562 affected
5.10.220< 5.10.248 affected
… +10 more rows
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I. Basic Information for CVE-2025-68803

Vulnerability Information
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Vulnerability Title
NFSD: NFSv4 file creation neglects setting ACL
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: NFSv4 file creation neglects setting ACL An NFSv4 client that sets an ACL with a named principal during file creation retrieves the ACL afterwards, and finds that it is only a default ACL (based on the mode bits) and not the ACL that was requested during file creation. This violates RFC 8881 section 6.4.1.3: "the ACL attribute is set as given". The issue occurs in nfsd_create_setattr(), which calls nfsd_attrs_valid() to determine whether to call nfsd_setattr(). However, nfsd_attrs_valid() checks only for iattr changes and security labels, but not POSIX ACLs. When only an ACL is present, the function returns false, nfsd_setattr() is skipped, and the POSIX ACL is never applied to the inode. Subsequently, when the client retrieves the ACL, the server finds no POSIX ACL on the inode and returns one generated from the file's mode bits rather than returning the originally-specified ACL.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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，该漏洞源于创建文件时未检查POSIX ACL属性，导致ACL设置失败。
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 c5409ce523af40d5c3019717bc5b4f72038d48be ~ c182e1e0b7640f6bcc0c5ca8d473f7c57199ea3d -
Linux Linux 6.0 -

II. Public POCs for CVE-2025-68803

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III. Intelligence Information for CVE-2025-68803

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Same Patch Batch · Linux · 2026-01-13 · 93 CVEs total

CVE-2025-71068 9.8 CRITICAL svcrdma: bound check rq_pages index in inline path
CVE-2025-68794 9.8 CRITICAL iomap: adjust read range correctly for non-block-aligned positions
CVE-2025-68811 9.8 CRITICAL svcrdma: use rc_pageoff for memcpy byte offset
CVE-2025-68817 9.8 CRITICAL ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency
CVE-2025-68775 9.8 CRITICAL net/handshake: duplicate handshake cancellations leak socket
CVE-2025-68809 9.1 CRITICAL ksmbd: vfs: fix race on m_flags in vfs_cache
CVE-2025-71093 9.1 CRITICAL e1000: fix OOB in e1000_tbi_should_accept()
CVE-2025-71095 9.1 CRITICAL net: stmmac: fix the crash issue for zero copy XDP_TX action
CVE-2025-68818 8.8 HIGH scsi: Revert "scsi: qla2xxx: Perform lockless command completion in abort path"
CVE-2025-71072 8.2 HIGH shmem: fix recovery on rename failures
CVE-2025-68799 8.1 HIGH caif: fix integer underflow in cffrml_receive()
CVE-2025-68815 7.8 HIGH net/sched: ets: Remove drr class from the active list if it changes to strict
CVE-2025-68795 7.8 HIGH ethtool: Avoid overflowing userspace buffer on stats query
CVE-2025-68800 7.8 HIGH mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats
CVE-2025-68810 7.8 HIGH KVM: Disallow toggling KVM_MEM_GUEST_MEMFD on an existing memslot
CVE-2025-68801 7.8 HIGH mlxsw: spectrum_router: Fix neighbour use-after-free
CVE-2025-68793 7.8 HIGH drm/amdgpu: fix a job->pasid access race in gpu recovery
CVE-2025-68792 7.8 HIGH tpm2-sessions: Fix out of range indexing in name_size
CVE-2025-71066 7.8 HIGH net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change
CVE-2025-71082 7.8 HIGH Bluetooth: btusb: revert use of devm_kzalloc in btusb

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-68803

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