01 Record

CVE-2025-37823

net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too

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: hfsc: Fix a potential UAF in hfsc_dequeue() too

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: 0.20% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 10.5% 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 2026-07-30.
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

2025-05-08 06:26Z1 YR AGO

Last updated

2026-08-05 11:57Z1 MO AGO

Reserved

2025-04-16

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

7155fe0dacdf7f4287a96cb5d663b56eec32738162c5036a1a4be7221a298e48

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 68f256305ceb426d545a0dc31f83c2ab1d211a1e, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 2f46d14919c39528c6e540ebc43f90055993eedc, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < da7936518996d290e2fcfcaf6cd7e15bfd87804a, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 11bccb054c1462fb069219f8e98e97a5a730758e, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 76c4c22c2437d3d3880efc0f62eca06ef078d290, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < c6f035044104c6ff656f4565cd22938dc892528c, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < c6936266f8bf98a53f28ef9a820e6a501e946d09, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 6ccbda44e2cc3d26fd22af54c650d6d5d801addf, 2.6.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/68f256305ceb426d545a0dc31f83c2ab1d211a1e
git.kernel.orghttps://git.kernel.org/stable/c/2f46d14919c39528c6e540ebc43f90055993eedc
git.kernel.orghttps://git.kernel.org/stable/c/da7936518996d290e2fcfcaf6cd7e15bfd87804a
git.kernel.orghttps://git.kernel.org/stable/c/11bccb054c1462fb069219f8e98e97a5a730758e
git.kernel.orghttps://git.kernel.org/stable/c/76c4c22c2437d3d3880efc0f62eca06ef078d290
git.kernel.orghttps://git.kernel.org/stable/c/c6f035044104c6ff656f4565cd22938dc892528c
git.kernel.orghttps://git.kernel.org/stable/c/c6936266f8bf98a53f28ef9a820e6a501e946d09
git.kernel.orghttps://git.kernel.org/stable/c/6ccbda44e2cc3d26fd22af54c650d6d5d801addf
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

01 Record index

CVE-2025-37823

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-37823

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References