Loading vulnerability…
CVE-2025-39730 is a bounds-checking vulnerability in the Linux kernel NFS function nfs_fh_to_dentry(). The function accesses an embedded filehandle without first verifying that the supplied filehandle meets the minimum required length. An undersized filehandle can consequently cause out-of-bounds access in kernel context, potentially resulting in a kernel crash or denial of service. The fix validates the minimum filehandle length before accessing the embedded filehandle.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
22 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel NFS vulnerability involving insufficient filehandle bounds checking in nfs_fh_to_dentry(). The fix checks the minimum filehandle length before accessing the embedded filehandle. The advisory identifies affected Google COS kernel packages and assigns a CVSS v3 base score of 7.8, with local access and low privileges required.
A Linux kernel NFS vulnerability involving insufficient filehandle length validation in nfs_fh_to_dentry(). The advisory identifies affected Google COS kernel packages and assigns a CVSS v3 base score of 7.8, with local access and low privileges required. The prescribed remediation is to update sys-kernel/csql-kernel-6_1 and related packages to version 18613.339.70 or later.
Referenced by the TuxCare CentOS 8.5 security advisory; no vulnerability details are provided.
Linux kernel NFS vulnerability involving inadequate filehandle bounds checking in nfs_fh_to_dentry().
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.