CVE-2025-39730
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/12ad3def2e5e0b120e3d0cb6ce8b7b796819ad40Patch
- https://git.kernel.org/stable/c/2ad40b7992aa26bc631afc1a995b0e3ddc30de3fPatch
- https://git.kernel.org/stable/c/3570ef5c31314c13274c935a20b91768ab5bf412Patch
- https://git.kernel.org/stable/c/763810bb883cb4de412a72f338d80947d97df67bPatch
- https://git.kernel.org/stable/c/7dd36f7477d1e03a1fcf8d13531ca326c4fb599fPatch
- https://git.kernel.org/stable/c/7f8eca87fef7519e9c41f3258f25ebc2752247eePatch
- https://git.kernel.org/stable/c/b7f7866932466332a2528fda099000b035303485Patch
- https://git.kernel.org/stable/c/cb09afa0948d96b1e385d609ed044bb1aa043536Patch
- https://git.kernel.org/stable/c/ef93a685e01a281b5e2a25ce4e3428cf9371a205Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.