Answer in brief
CVE-2026-46131 records a Medium severity (CVSS 5.5) vulnerability in KVM: x86: check for nEPT/nNPT in slow flush hypercalls. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (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 5.5. 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/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=aee738236dca0d0870789138ec494e15d6303566 <971f17f5d91045404e3914029ea57c3da90179a4 || >=aee738236dca0d0870789138ec494e15d6303566 <45fc766bc756ff1d66f8ca026a9c4f7f764adfae || >=aee738236dca0d0870789138ec494e15d6303566 <d6f4e217d663ede5becc2fd6cb612c749677387b || >=aee738236dca0d0870789138ec494e15d6303566 <4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57 || >=aee738236dca0d0870789138ec494e15d6303566 <464af6fc2b1dcc74005b7f58ee3812b17777efee | 971f17f5d91045404e3914029ea57c3da90179a4, 45fc766bc756ff1d66f8ca026a9c4f7f764adfae, d6f4e217d663ede5becc2fd6cb612c749677387b, 4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57, 464af6fc2b1dcc74005b7f58ee3812b17777efee |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: check for nEPT/nNPT in slow flush hypercalls Checking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa() is only valid if an L2 guest is running *with nested EPT/NPT enabled*. Instead use the same condition as translate_nested_gpa() itself.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-46131 records a Medium severity (CVSS 5.5) vulnerability in KVM: x86: check for nEPT/nNPT in slow flush hypercalls. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (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 5.5. 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/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=aee738236dca0d0870789138ec494e15d6303566 <971f17f5d91045404e3914029ea57c3da90179a4 || >=aee738236dca0d0870789138ec494e15d6303566 <45fc766bc756ff1d66f8ca026a9c4f7f764adfae || >=aee738236dca0d0870789138ec494e15d6303566 <d6f4e217d663ede5becc2fd6cb612c749677387b || >=aee738236dca0d0870789138ec494e15d6303566 <4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57 || >=aee738236dca0d0870789138ec494e15d6303566 <464af6fc2b1dcc74005b7f58ee3812b17777efee | 971f17f5d91045404e3914029ea57c3da90179a4, 45fc766bc756ff1d66f8ca026a9c4f7f764adfae, d6f4e217d663ede5becc2fd6cb612c749677387b, 4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57, 464af6fc2b1dcc74005b7f58ee3812b17777efee |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: check for nEPT/nNPT in slow flush hypercalls Checking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa() is only valid if an L2 guest is running *with nested EPT/NPT enabled*. Instead use the same condition as translate_nested_gpa() itself.
Quoted source text, attributed separately from HOL analysis.