01 Record

CVE-2021-47432

lib/generic-radix-tree.c: Don't overflow in peek()

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

lib/generic-radix-tree.c: Don't overflow in peek()

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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.2% 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 15:30Z2 YR AGO

Last updated

2026-05-11 13:54Z3 MO AGO

Reserved

2024-05-21

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-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

72b47cb45779e89a5a899d9a358e5ff8c68f44f01c759ccb7b9fc8ae0c257fe0

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxba20ba2e3743bac786dff777954c11930256075e to < 784d01f9bbc282abb0c5ade5beb98a87f50343ac, ba20ba2e3743bac786dff777954c11930256075e to < ec298b958cb0c40d70c68079da933c8f31c5134c, ba20ba2e3743bac786dff777954c11930256075e to < aa7f1827953100cdde0795289a80c6c077bfe437, ba20ba2e3743bac786dff777954c11930256075e to < 9492261ff2460252cf2d8de89cdf854c7e2b28a0, 5.1—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/784d01f9bbc282abb0c5ade5beb98a87f50343ac
git.kernel.orghttps://git.kernel.org/stable/c/ec298b958cb0c40d70c68079da933c8f31c5134c
git.kernel.orghttps://git.kernel.org/stable/c/aa7f1827953100cdde0795289a80c6c077bfe437
git.kernel.orghttps://git.kernel.org/stable/c/9492261ff2460252cf2d8de89cdf854c7e2b28a0

01 Record index

CVE-2021-47432

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47432

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References