Answer in brief
CVE-2021-3501 records a High severity (CVSS 7.1) vulnerability in CVE Program Container. The current sources do not mark it as known exploited. The current feed maps Linux/kernel (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/kernel (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.4:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.4:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/kernelgeneric | >=5.9 <5.10.32 || >=5.11 <5.11.16 | 5.10.32, 5.11.16 |
Published upstream
May 5, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2021-3501 records a High severity (CVSS 7.1) vulnerability in CVE Program Container. The current sources do not mark it as known exploited. The current feed maps Linux/kernel (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/kernel (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.4:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.4:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/kernelgeneric | >=5.9 <5.10.32 || >=5.11 <5.11.16 | 5.10.32, 5.11.16 |
Published upstream
May 5, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
Quoted source text, attributed separately from HOL analysis.