01 Record

CVE-2026-31423

net/sched: sch_hfsc: fix divide-by-zero in rtsc_min()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net/sched: sch_hfsc: fix divide-by-zero in rtsc_min()

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: 0.12% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.2% of scored records. A rank, not a probability.
NVD base score: 5.5 (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:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-14.
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

2026-04-13 13:40Z4 MO AGO

Last updated

2026-07-14 12:47Z1 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-369Divide By ZeroBase

Data version

5.2

Document digest

dd41c3c9191203334c526803b153e25bd15197bdb4c123a40da87ae9834ac24f

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < ad8e8fec40290a8c8cf145c0deaadf76f80c5163, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < ab1ff5890c7354afc7be56502fcfbd61f3b7ae4f, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 25b6821884713a31e2b49fb67b0ebd765b33e0a9, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < c56f78614e7781aaceca9bd3cb2128bf7d45c3bd, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b9e6431cbea8bb1fae8069ed099b4ee100499835, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 17c1b9807b8a67d676b6dcf749ee932ebaa7f568, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d0aefec1b1a1ba2c1d251028dc2c4e5b4ce1fea5, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 4576100b8cd03118267513cafacde164b498b322, 2.6.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/ad8e8fec40290a8c8cf145c0deaadf76f80c5163
git.kernel.orghttps://git.kernel.org/stable/c/ab1ff5890c7354afc7be56502fcfbd61f3b7ae4f
git.kernel.orghttps://git.kernel.org/stable/c/25b6821884713a31e2b49fb67b0ebd765b33e0a9
git.kernel.orghttps://git.kernel.org/stable/c/c56f78614e7781aaceca9bd3cb2128bf7d45c3bd
git.kernel.orghttps://git.kernel.org/stable/c/b9e6431cbea8bb1fae8069ed099b4ee100499835
git.kernel.orghttps://git.kernel.org/stable/c/17c1b9807b8a67d676b6dcf749ee932ebaa7f568
git.kernel.orghttps://git.kernel.org/stable/c/d0aefec1b1a1ba2c1d251028dc2c4e5b4ce1fea5
git.kernel.orghttps://git.kernel.org/stable/c/4576100b8cd03118267513cafacde164b498b322
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-2026-31423

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31423

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References