01 Record

CVE-2021-47231

can: mcba_usb: fix memory leak in mcba_usb

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

can: mcba_usb: fix memory leak in mcba_usb

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 ImpactpartialSuccessful exploitation gives limited 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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.4% 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 2026-06-17.

Red Hat severity

Low. 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

2024-05-21 14:19Z2 YR AGO

Last updated

2026-05-11 13:50Z3 MO AGO

Reserved

2024-04-10

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-401Missing Release of Memory after Effective LifetimeVariant
CWE-402Transmission of Private Resources into a New Sphere ('Resource Leak')Class

Data version

5.2

Document digest

c26138024a659e0f6bdaa4b224b5d6fb226a46c111972acefd9f6a1e39454505

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux51f3baad7de943780ce0c17bd7975df567dd6e14 to < 89df95ce32be204eef2e7d4b2f6fb552fb191a68, 51f3baad7de943780ce0c17bd7975df567dd6e14 to < a115198caaab6d663bef75823a3c5f0802306d60, 51f3baad7de943780ce0c17bd7975df567dd6e14 to < 6f87c0e21ad20dd3d22108e33db1c552dfa352a0, 51f3baad7de943780ce0c17bd7975df567dd6e14 to < 6bd3d80d1f019cefa7011056c54b323f1d8b8e83, 51f3baad7de943780ce0c17bd7975df567dd6e14 to < d0760a4ef85697bc756d06eae17ae27f3f055401, 51f3baad7de943780ce0c17bd7975df567dd6e14 to < 91c02557174be7f72e46ed7311e3bea1939840b0, 4.12—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/89df95ce32be204eef2e7d4b2f6fb552fb191a68
git.kernel.orghttps://git.kernel.org/stable/c/a115198caaab6d663bef75823a3c5f0802306d60
git.kernel.orghttps://git.kernel.org/stable/c/6f87c0e21ad20dd3d22108e33db1c552dfa352a0
git.kernel.orghttps://git.kernel.org/stable/c/6bd3d80d1f019cefa7011056c54b323f1d8b8e83
git.kernel.orghttps://git.kernel.org/stable/c/d0760a4ef85697bc756d06eae17ae27f3f055401
git.kernel.orghttps://git.kernel.org/stable/c/91c02557174be7f72e46ed7311e3bea1939840b0

01 Record index

CVE-2021-47231

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47231

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References