01 Record

CVE-2025-38248

bridge: mcast: Fix use-after-free during router port configuration

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 use-after-free during router port configuration

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.9% 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

2025-07-09 10:42Z1 YR AGO

Last updated

2026-08-05 12:00Z1 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
CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

079394b96b8b55bf7c8a7a53890a606b45a756392fc899233a1faff384c37307

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux2796d846d74a18cc6563e96eff8bf28c5e06f912 to < 4d3c2a1d4c7c33103f1ddfdbc5cfe1ea4f6d0dcd, 2796d846d74a18cc6563e96eff8bf28c5e06f912 to < bdced577da71b118b6ed4242ebd47f81bf54d406, 2796d846d74a18cc6563e96eff8bf28c5e06f912 to < f05a4f9e959e0fc098046044c650acf897ea52d2, 2796d846d74a18cc6563e96eff8bf28c5e06f912 to < 7544f3f5b0b58c396f374d060898b5939da31709, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/4d3c2a1d4c7c33103f1ddfdbc5cfe1ea4f6d0dcd
git.kernel.orghttps://git.kernel.org/stable/c/bdced577da71b118b6ed4242ebd47f81bf54d406
git.kernel.orghttps://git.kernel.org/stable/c/f05a4f9e959e0fc098046044c650acf897ea52d2
git.kernel.orghttps://git.kernel.org/stable/c/7544f3f5b0b58c396f374d060898b5939da31709

01 Record index

CVE-2025-38248

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-38248

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References