01 Record

CVE-2024-26843

efi: runtime: Fix potential overflow of soft-reserved region size

MediumPUBLISHEDCNA: Linux

CNA base score6.0 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

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02 Description

efi: runtime: Fix potential overflow of soft-reserved region size

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

6.0 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. 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

2024-04-17 10:10Z2 YR AGO

Last updated

2026-05-11 20:05Z3 MO AGO

Reserved

2024-02-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 6.0)

CNA CVSS vector

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

Weaknesses

CWE-787Out-of-bounds WriteBase
CWE-121Stack-based Buffer OverflowVariant

Data version

5.2

Document digest

6da60facc5728e9fd5c562e0c4f7b03fd40e01bedf9e46682fb9e799734538b1

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux16993c0f0a43213e23666ea40e9163887f593ac7 to < 4fff3d735baea104017f2e3c245e27cdc79f2426, 16993c0f0a43213e23666ea40e9163887f593ac7 to < 4aa36b62c3eaa869860bf78b1146e9f2b5f782a9, 16993c0f0a43213e23666ea40e9163887f593ac7 to < 700c3f642c32721f246e09d3a9511acf40ae42be, 16993c0f0a43213e23666ea40e9163887f593ac7 to < cf3d6813601fe496de7f023435e31bfffa74ae70, 16993c0f0a43213e23666ea40e9163887f593ac7 to < 156cb12ffdcf33883304f0db645e1eadae712fe0, 16993c0f0a43213e23666ea40e9163887f593ac7 to < de1034b38a346ef6be25fe8792f5d1e0684d5ff4, 5.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/4fff3d735baea104017f2e3c245e27cdc79f2426
git.kernel.orghttps://git.kernel.org/stable/c/4aa36b62c3eaa869860bf78b1146e9f2b5f782a9
git.kernel.orghttps://git.kernel.org/stable/c/700c3f642c32721f246e09d3a9511acf40ae42be
git.kernel.orghttps://git.kernel.org/stable/c/cf3d6813601fe496de7f023435e31bfffa74ae70
git.kernel.orghttps://git.kernel.org/stable/c/156cb12ffdcf33883304f0db645e1eadae712fe0
git.kernel.orghttps://git.kernel.org/stable/c/de1034b38a346ef6be25fe8792f5d1e0684d5ff4
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

01 Record index

CVE-2024-26843

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-26843

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References