PT-2026-8180 · Linux · Linux Kernel

Published 2025-01-01 · Updated 2026-04-20 · CVE-2025-71223

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Description A reference count leak exists in the smb2 open() function within the ksmbd server component of the Linux kernel. This occurs when the ksmbd vfs getattr() function fails, and the reference count of the ksmbd file object is not released.

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

Exploit

Related Identifiers

CVE-2025-71223

ECHO-B32D-DB85-7EC1

OESA-2026-1566

OESA-2026-1567

OESA-2026-1570

Affected Products

Linux Kernel

References · 99

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71223.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2025-71223 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23220 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71065 · Security Note
• https://osv.dev/vulnerability/CVE-2025-71223 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23038 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-68192 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38627 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23163 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71221 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-71223 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23205 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-22984 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-22977 · Security Note
• https://git.kernel.org/stable/c/4665e52bde3b1f8f442895ce7d88fa62a43e48c4 · Patch