01 Record

CVE-2026-64012

net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked

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: Equal to or higher than the score of 1.8% 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: Analyzed. NVD last modified this record on 2026-10-13.
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

2026-07-19 14:56Z3 MO AGO

Last updated

2026-07-19 14:56Z3 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

8c5fa44a903ffa6d078316b75fc9b72c3bd746253b97b0b89c6240db9196c50d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxe13e02a3c68d899169c78d9a18689bd73491d59a to < e5ea51e5f3fbba41d50cd84a530f33bc1c8f4d57, e13e02a3c68d899169c78d9a18689bd73491d59a to < 1e70274d3b81de28973bcdbce40a512bcb181ff9, e13e02a3c68d899169c78d9a18689bd73491d59a to < e125f5980b730c67c92a30cf150ec8c3d6777318, e13e02a3c68d899169c78d9a18689bd73491d59a to < 6c153d97c100f5b282c424101d8ff63122306997, e13e02a3c68d899169c78d9a18689bd73491d59a to < 84bfbfc0c48731bcce74cdf4f9c497547ec525e0, e13e02a3c68d899169c78d9a18689bd73491d59a to < dbc560858da8b77dd9e4ef0cd93d421e0e4d7e0e, e13e02a3c68d899169c78d9a18689bd73491d59a to < 9ad3288632c859cf84183199832d822e7a70bdae, e13e02a3c68d899169c78d9a18689bd73491d59a to < 1b9bc71153b01dbde8045b9edede4240f4f5520e, 2.6.39—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/e5ea51e5f3fbba41d50cd84a530f33bc1c8f4d57
git.kernel.orghttps://git.kernel.org/stable/c/1e70274d3b81de28973bcdbce40a512bcb181ff9
git.kernel.orghttps://git.kernel.org/stable/c/e125f5980b730c67c92a30cf150ec8c3d6777318
git.kernel.orghttps://git.kernel.org/stable/c/6c153d97c100f5b282c424101d8ff63122306997
git.kernel.orghttps://git.kernel.org/stable/c/84bfbfc0c48731bcce74cdf4f9c497547ec525e0
git.kernel.orghttps://git.kernel.org/stable/c/dbc560858da8b77dd9e4ef0cd93d421e0e4d7e0e
git.kernel.orghttps://git.kernel.org/stable/c/9ad3288632c859cf84183199832d822e7a70bdae
git.kernel.orghttps://git.kernel.org/stable/c/1b9bc71153b01dbde8045b9edede4240f4f5520e

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.94-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.0.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.