01 Record

CVE-2024-56689

PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'

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

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02 Description

PCI: endpoint: epf-mhi: Avoid NULL dereference if DT lacks 'mmio'

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 10.7% 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

Modified. NVD last modified this record on 2026-06-17.

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

2024-12-28 09:46Z1 YR AGO

Last updated

2026-05-11 20:57Z3 MO AGO

Reserved

2024-12-27

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-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

7c6d56404161521fc0912ae49842cc47f699f19d9820c9f6873cb49d09c7224f

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 to < 242ee2b0ad9b23f47084904fce3f9f228068a1f9, 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 to < c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef, 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 to < 0e6d92e3b973de78eb7015154cf1197af9fac5c9, 1bf5f25324f7f6a52c3eb566ec5f78f6a901db96 to < 5089b3d874e9933d9842e90410d3af1520494757, 6.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/242ee2b0ad9b23f47084904fce3f9f228068a1f9
git.kernel.orghttps://git.kernel.org/stable/c/c8b9d6b7d62a444e0bca5b9ae28f9f2b0f52feef
git.kernel.orghttps://git.kernel.org/stable/c/0e6d92e3b973de78eb7015154cf1197af9fac5c9
git.kernel.orghttps://git.kernel.org/stable/c/5089b3d874e9933d9842e90410d3af1520494757

01 Record index

CVE-2024-56689

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-56689

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References