01 Record

CVE-2026-31403

NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

NFSD: Hold net reference for the lifetime of /proc/fs/nfs/exports fd

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.13% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.6% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-24.
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

2026-04-03 15:16Z5 MO AGO

Last updated

2026-08-05 12:22Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

bbb7419b70bbebb5374196ffc3100c25b5e8604f7a75542003a93c4d7ac4eb1d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < 76740c28050dc6db2f5550f1325b00a11bbb3255, 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < c7f406fb341d6747634b8b1fa5461656e5e56076, 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < d1a19217995df9c7e4118f5a2820c5032fef2945, 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < e3d77f935639e6ae4b381c80464c31df998d61f4, 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < db4a9f99b12a7ee1c19d86c83a3b752c7effa6c6, 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < 6a8d70e2ad6aad2c345a5048edcb8168036f97d6, 96d851c4d28de8cc83fe2bd5c6bc2eb8f253a6c5 to < e7fcf179b82d3a3730fd8615da01b087cc654d0b, 3.9—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/76740c28050dc6db2f5550f1325b00a11bbb3255
git.kernel.orghttps://git.kernel.org/stable/c/c7f406fb341d6747634b8b1fa5461656e5e56076
git.kernel.orghttps://git.kernel.org/stable/c/d1a19217995df9c7e4118f5a2820c5032fef2945
git.kernel.orghttps://git.kernel.org/stable/c/e3d77f935639e6ae4b381c80464c31df998d61f4
git.kernel.orghttps://git.kernel.org/stable/c/db4a9f99b12a7ee1c19d86c83a3b752c7effa6c6
git.kernel.orghttps://git.kernel.org/stable/c/6a8d70e2ad6aad2c345a5048edcb8168036f97d6
git.kernel.orghttps://git.kernel.org/stable/c/e7fcf179b82d3a3730fd8615da01b087cc654d0b
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-019113.html

01 Record index

CVE-2026-31403

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31403

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References