PT-2025-43096 · Linux+1 · Linux Kernel+1

Published 2023-01-09 · Updated 2025-12-04 · CVE-2023-53695

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description A flaw exists in the Linux kernel’s UDF filesystem handling. When a UDF filesystem is corrupted, hidden system inodes can be linked into the directory hierarchy. This creates a potential for further filesystem corruption and kernel instability, as identified through syzbot fuzzing. The issue is addressed by preventing access to system inodes linked into the directory hierarchy and vice versa.

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

Exploit

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

BDU:2026-01531

CVE-2023-53695

OESA-2025-2768

SUSE-SU-2025:4111-1

SUSE-SU-2025:4139-1

SUSE-SU-2025:4149-1

SUSE-SU-2025:4189-1

SUSE-SU-2025:4320-1

Affected Products

Linux Kernel

Suse

References · 624

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53695.json · Exploit
• https://cve.org/CVERecord?id=CVE-2023-53695 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53695 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4111-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2025-2768 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01531 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53695 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53695 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4189-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39964 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53695 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4320-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4149-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4139-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53695 · Vendor Advisory