Answer in brief
CVE-2025-21687 records a High severity (CVSS 7.8) vulnerability in vfio/platform: check the bounds of read/write syscalls. 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 7.8. 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 | >=6e3f264560099869f68830cb14b3b3e71e5ac76a <f21636f24b6786c8b13f1af4319fa75ffcf17f38 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <9377cdc118cf327248f1a9dde7b87de067681dc9 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <d19a8650fd3d7aed8d1af1d9a77f979a8430eba1 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <ed81d82bb6e9df3a137f2c343ed689e6c68268ef || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <92340e6c5122d823ad064984ef7513eba9204048 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <f65ce06387f8c1fb54bd59e18a8428248ec68eaf || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <6bcb8a5b70b80143db9bf12dfa7d53636f824d53 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <1485932496a1b025235af8aa1e21988d6b7ccd54 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <c981c32c38af80737a2fedc16e270546d139ccdd || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <a20fcaa230f7472456d12cf761ed13938e320ac3 || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <665cfd1083866f87301bbd232cb8ba48dcf4acce || >=6e3f264560099869f68830cb14b3b3e71e5ac76a <ce9ff21ea89d191e477a02ad7eabf4f996b80a69 | f21636f24b6786c8b13f1af4319fa75ffcf17f38, 9377cdc118cf327248f1a9dde7b87de067681dc9, d19a8650fd3d7aed8d1af1d9a77f979a8430eba1, ed81d82bb6e9df3a137f2c343ed689e6c68268ef, 92340e6c5122d823ad064984ef7513eba9204048, f65ce06387f8c1fb54bd59e18a8428248ec68eaf, 6bcb8a5b70b80143db9bf12dfa7d53636f824d53, 1485932496a1b025235af8aa1e21988d6b7ccd54, c981c32c38af80737a2fedc16e270546d139ccdd, a20fcaa230f7472456d12cf761ed13938e320ac3, 665cfd1083866f87301bbd232cb8ba48dcf4acce, ce9ff21ea89d191e477a02ad7eabf4f996b80a69 |
| Linux/Linuxgeneric | 4.1 | Not reported |
Published upstream
Feb 10, 2025
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
In the Linux kernel, the following vulnerability has been resolved: vfio/platform: check the bounds of read/write syscalls count and offset are passed from user space and not checked, only offset is capped to 40 bits, which can be used to read/write out of bounds of the device.
Quoted source text, attributed separately from HOL analysis.