CVE-2025-39798 NFS: Fix the setting of capabilities when automounting a new filesystem

What is CVE-2025-39798?

CVE-2025-39798 is a high-severity vulnerability in Debian Debian Linux, published on 12 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix the setting of capabilities when automounting a new filesystem

Capabilities cannot be inherited when we cross into a new filesystem. They need to be reset to the minimal defaults, and then probed for again.

Which versions are affected by CVE-2025-39798?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-39798?

Apply the vendor's patch.

Is CVE-2025-39798 being exploited?

There is no known exploitation of CVE-2025-39798 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-67331, AZL-74694, BELL-CVE-2025-39798, DEBIAN-CVE-2025-39798, GHSA-3cpq-66f5-87mj, ROOT-OS-DEBIAN-11-CVE-2025-39798 and 4 more.