01 Record

CVE-2025-37798

codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

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

codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

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: 0.21% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 11.9% 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

2025-05-02 14:16Z1 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-20Improper Input ValidationClass

Data version

5.2

Document digest

a5b52e8b07ff7463e1feb2b05374e8d91a55bf551dc069078732a4cd963d85f4

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < 7a742a9506849d1c1aa71e36c89855ceddc7d58e, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < cc71a757da78dd4aa1b4a9b19cb011833730ccf2, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < 829c49b6b2ff45b043739168fd1245e4e1a91a30, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < 2f9761a94bae33d26e6a81b31b36e7d776d93dc1, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < 4d55144b12e742404bb3f8fee6038bafbf45619d, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < e73c838c80dccb9e4f19becc11d9f3cb4a27d483, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31, 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 to < 342debc12183b51773b3345ba267e9263bdfaaef, 3.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7a742a9506849d1c1aa71e36c89855ceddc7d58e
git.kernel.orghttps://git.kernel.org/stable/c/cc71a757da78dd4aa1b4a9b19cb011833730ccf2
git.kernel.orghttps://git.kernel.org/stable/c/eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450
git.kernel.orghttps://git.kernel.org/stable/c/829c49b6b2ff45b043739168fd1245e4e1a91a30
git.kernel.orghttps://git.kernel.org/stable/c/2f9761a94bae33d26e6a81b31b36e7d776d93dc1
git.kernel.orghttps://git.kernel.org/stable/c/4d55144b12e742404bb3f8fee6038bafbf45619d
git.kernel.orghttps://git.kernel.org/stable/c/e73c838c80dccb9e4f19becc11d9f3cb4a27d483
git.kernel.orghttps://git.kernel.org/stable/c/a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31
git.kernel.orghttps://git.kernel.org/stable/c/342debc12183b51773b3345ba267e9263bdfaaef
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

01 Record index

CVE-2025-37798

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-37798

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References