01 Record

CVE-2026-89671

nfsd: gate nfs3 setacl by argp->mask

CriticalPUBLISHEDCNA: Linux

CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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02 Description

nfsd: gate nfs3 setacl by argp->mask

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 42.5% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD analysis status

Received. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-09-11 19:45Z1 MO AGO

Last updated

2026-10-19 08:50Z10 DAYS AGO

Reserved

2026-09-11

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-115Misinterpretation of InputBase
CWE-281Improper Preservation of PermissionsBase

Data version

5.2

Document digest

463ba803073941ea4f0f816cb43c44c8adbb4c4de562c335205b011c21edfe2d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxa257cdd0e2179630d3201c32ba14d7fcb3c3a055 to < 3be1d8611dae4829e4608007db29f4a8748c37b2, a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to < 68a80b26efdff1d09f8ae1773c6a915abb9e191d, a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to < b3bff820d068ea59767d4e91a3258231a879da5f, a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to < ff99ed007f065198fd723152405c22aa558f700b, a257cdd0e2179630d3201c32ba14d7fcb3c3a055 to < 453d7198a0ab07a12d46e0575861ac7b932da17e, 2.6.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/3be1d8611dae4829e4608007db29f4a8748c37b2
git.kernel.orghttps://git.kernel.org/stable/c/68a80b26efdff1d09f8ae1773c6a915abb9e191d
git.kernel.orghttps://git.kernel.org/stable/c/b3bff820d068ea59767d4e91a3258231a879da5f
git.kernel.orghttps://git.kernel.org/stable/c/ff99ed007f065198fd723152405c22aa558f700b
git.kernel.orghttps://git.kernel.org/stable/c/453d7198a0ab07a12d46e0575861ac7b932da17e

07 Fixed in

Debian 12

linux
No fix yet
linux-6.12
Fixed in 6.12.111-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.111-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.2.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.