01 Record

CVE-2026-23270

net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks

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

net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks

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 2026-07-14.
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

2026-03-18 17:54Z5 MO AGO

Last updated

2026-08-05 12:21Z1 MO AGO

Reserved

2026-01-13

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-416Use After FreeVariant

Data version

5.2

Document digest

8f7448d7b47faf32f21ea5f4dd6bbf6244f65bac20651c584da761ba7f6462c1

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux172ba7d46c202e679f3ccb10264c67416aaeb1c4 to < bc4e5bb529823a09f02dbe96169de679a9db26e0, 0b5b831122fc3789fff75be433ba3e4dd7b779d4 to < fb3c380a54e33d1fd272cc342faa906d787d7ef1, 73f7da5fd124f2cda9161e2e46114915e6e82e97 to < 5a110ddcc99bda77a28598b3555fe009eaab3828, 3f14b377d01d8357eba032b4cabc8c1149b458b6 to < 524ce8b4ea8f64900b6c52b6a28df74f6bc0801e, 3f14b377d01d8357eba032b4cabc8c1149b458b6 to < 380ad8b7c65ea7aa10ef2258297079ed5ac1f5b6, 3f14b377d01d8357eba032b4cabc8c1149b458b6 to < 9deda0fcda5c1f388c5e279541850b71a2ccfcf4, 3f14b377d01d8357eba032b4cabc8c1149b458b6 to < 11cb63b0d1a0685e0831ae3c77223e002ef18189, f5346df0591d10bc948761ca854b1fae6d2ef441, 5.15.148 to < 5.15.203, 6.1.75 to < 6.1.167, 6.6.14 to < 6.6.130, 6.7.2 to < 6.8, 6.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/bc4e5bb529823a09f02dbe96169de679a9db26e0
git.kernel.orghttps://git.kernel.org/stable/c/fb3c380a54e33d1fd272cc342faa906d787d7ef1
git.kernel.orghttps://git.kernel.org/stable/c/5a110ddcc99bda77a28598b3555fe009eaab3828
git.kernel.orghttps://git.kernel.org/stable/c/524ce8b4ea8f64900b6c52b6a28df74f6bc0801e
git.kernel.orghttps://git.kernel.org/stable/c/380ad8b7c65ea7aa10ef2258297079ed5ac1f5b6
git.kernel.orghttps://git.kernel.org/stable/c/9deda0fcda5c1f388c5e279541850b71a2ccfcf4
git.kernel.orghttps://git.kernel.org/stable/c/11cb63b0d1a0685e0831ae3c77223e002ef18189
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-2026-23270

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-23270

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References