01 Record

CVE-2026-64032

bridge: mcast: Fix a possible use-after-free when removing a bridge port

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

bridge: mcast: Fix a possible use-after-free when removing a bridge port

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 3.1% 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: Awaiting Analysis. 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

2026-07-19 15:39Z1 MO AGO

Last updated

2026-08-05 12:38Z1 MO AGO

Reserved

2026-07-19

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-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

426015389f669d20c9b1e7190874f64c789eebf0868fadb664ceafce0444ef3b

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux410a033bfa8c7daefbae0225c836693db2149ec1 to < ddefd1b8e5eb58933a697ab38334f0fd82e7fb8b, c6d16eab122744df698f18b47cf771945cd55066 to < ed3b69e60385a03df11c6d12e5d7bdf0f4a11b70, b4c83b37490d61cfdd62a2b29e98a9b89004b5c0 to < 1900ca8acb92fbea8bf9abef9927c7fed03db7fc, 78f768e36c065ca3f88272fcf39014782c2d4ecd to < ebe5561154c823b323bd06e350b55e0b8604d851, 4b30ae9adb047dd0a7982975ec3933c529537026 to < a9224862d597d0eed0a34bbb27343f703fc4113f, 4b30ae9adb047dd0a7982975ec3933c529537026 to < 7213256c91ed778a0997c2029c152b18dc50e4fd, 4b30ae9adb047dd0a7982975ec3933c529537026 to < 4df78ff02629c7729168f0696a7a2123c389818d, c996e25df0b3282c724bb5aca434518bc08cd963, 5.15.186 to < 5.15.209, 6.1.142 to < 6.1.175, 6.6.95 to < 6.6.142, 6.12.35 to < 6.12.92, 6.15.4 to < 6.16, 6.16—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/ddefd1b8e5eb58933a697ab38334f0fd82e7fb8b
git.kernel.orghttps://git.kernel.org/stable/c/ed3b69e60385a03df11c6d12e5d7bdf0f4a11b70
git.kernel.orghttps://git.kernel.org/stable/c/1900ca8acb92fbea8bf9abef9927c7fed03db7fc
git.kernel.orghttps://git.kernel.org/stable/c/ebe5561154c823b323bd06e350b55e0b8604d851
git.kernel.orghttps://git.kernel.org/stable/c/a9224862d597d0eed0a34bbb27343f703fc4113f
git.kernel.orghttps://git.kernel.org/stable/c/7213256c91ed778a0997c2029c152b18dc50e4fd
git.kernel.orghttps://git.kernel.org/stable/c/4df78ff02629c7729168f0696a7a2123c389818d

01 Record index

CVE-2026-64032

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-64032

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References