PT-2025-17277 · Linux+4 · Linux Kernel+4

Published 2025-03-10 · Updated 2026-01-26 · CVE-2025-39688

Positive Technologies (AI Summary)

CVSS v2.0

6.4

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:P

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved, related to the nfsd module. The issue arises when a delegation is revoked and marked with the SC STATUS FREEABLE flag, which denotes that it is waiting for a FREE STATEID call. The nfs4 lookup stateid() function does not include SC STATUS FREEABLE in its status mask, resulting in revoked delegations not being found. The fix involves adding SC STATUS FREEABLE to the always-allowed status flags.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-99

Related Identifiers

BDU:2025-12308

CVE-2025-39688

USN-7594-1

USN-7594-2

USN-7594-3

USN-7605-1

USN-7605-2

USN-7606-1

USN-7628-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Red Os

Ubuntu

References · 476

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39688.json · Exploit
• https://ubuntu.com/security/CVE-2025-37824 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37881 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21972 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37859 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39688 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-23140 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21992 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-23159 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37842 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37833 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21939 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-37806 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-22116 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21951 · Vendor Advisory