01 Record

CVE-2021-47497

nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells

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

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 12.8% 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

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

2024-05-22 08:19Z2 YR AGO

Last updated

2026-05-11 13:55Z3 MO AGO

Reserved

2024-05-22

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-787Out-of-bounds WriteBase
CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

4766666a28398109250408aacea27f5f4301c7df921b21b0a59c88737bc99250

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < abcb8d33e4d2215ccde5ab5ccf9f730a59d79d97, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < 60df06bbdf497e37ed25ad40572c362e5b0998df, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < 2df6c023050205c4d04ffc121bc549f65cb8d1df, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < eb0fc8e7170e61eaf65d28dee4a8baf4e86b19ca, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < 0594f1d048d8dc338eb9a240021b1d00ae1eb082, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < 57e48886401b14cd351423fabfec2cfd18df4f66, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < 0e822e5413da1af28cca350cb1cb42b6133bdcae, 69aba7948cbe53f2f1827e84e9dd0ae470a5072e to < 5d388fa01fa6eb310ac023a363a6cb216d9d8fe9, 4.3—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/abcb8d33e4d2215ccde5ab5ccf9f730a59d79d97
git.kernel.orghttps://git.kernel.org/stable/c/60df06bbdf497e37ed25ad40572c362e5b0998df
git.kernel.orghttps://git.kernel.org/stable/c/2df6c023050205c4d04ffc121bc549f65cb8d1df
git.kernel.orghttps://git.kernel.org/stable/c/eb0fc8e7170e61eaf65d28dee4a8baf4e86b19ca
git.kernel.orghttps://git.kernel.org/stable/c/0594f1d048d8dc338eb9a240021b1d00ae1eb082
git.kernel.orghttps://git.kernel.org/stable/c/57e48886401b14cd351423fabfec2cfd18df4f66
git.kernel.orghttps://git.kernel.org/stable/c/0e822e5413da1af28cca350cb1cb42b6133bdcae
git.kernel.orghttps://git.kernel.org/stable/c/5d388fa01fa6eb310ac023a363a6cb216d9d8fe9

01 Record index

CVE-2021-47497

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2021-47497

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References