01 Record

CVE-2026-89665

nfsd: reject out-of-range useconds in NFSv2 SETATTR/CREATE

HighPUBLISHEDCNA: Linux

CNA base score8.2 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

View raw JSON

02 Description

nfsd: reject out-of-range useconds in NFSv2 SETATTR/CREATE

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 ImpactpartialSuccessful exploitation gives limited 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

0.62% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.6% of scored records. A rank, not a probability.

NVD base score

8.2 (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:N/I:H/A:L

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

High (CVSS 8.2)

CNA CVSS vector

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

Weaknesses

CWE-190Integer Overflow or WraparoundBase
CWE-20Improper Input ValidationClass

Data version

5.2

Document digest

1d5bdc1d6e29092e10178faf09fc727348e152baa9cea6b87f2b68fc63538285

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < cdc3299f7072777b09c9582a3b8b65bb163ddcf3, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 09a79d9ab35a39603c834e8f6333603292f9c816, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 5296a2442d12d45d6eea7b4d3ec3ffecc1821cac, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1db456ffc22e045f49f7b9e62415a26b3f33f200, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a937dd1aa2d92291fe0a1860d17e90d8f206cd22, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < ad02d095439f89cbd6629420c7e3ba476457b83b, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1195483965a5f63d2dde18054ec7e50a23b9071c, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 26709c8ffe73772eb69e68d553ac71d91228dccc, 2.6.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/cdc3299f7072777b09c9582a3b8b65bb163ddcf3
git.kernel.orghttps://git.kernel.org/stable/c/09a79d9ab35a39603c834e8f6333603292f9c816
git.kernel.orghttps://git.kernel.org/stable/c/5296a2442d12d45d6eea7b4d3ec3ffecc1821cac
git.kernel.orghttps://git.kernel.org/stable/c/1db456ffc22e045f49f7b9e62415a26b3f33f200
git.kernel.orghttps://git.kernel.org/stable/c/a937dd1aa2d92291fe0a1860d17e90d8f206cd22
git.kernel.orghttps://git.kernel.org/stable/c/ad02d095439f89cbd6629420c7e3ba476457b83b
git.kernel.orghttps://git.kernel.org/stable/c/1195483965a5f63d2dde18054ec7e50a23b9071c
git.kernel.orghttps://git.kernel.org/stable/c/26709c8ffe73772eb69e68d553ac71d91228dccc

07 Fixed in

Debian 12

linux
Fixed in 6.1.190-1
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.