PT-2025-53210 · Linux · Linux Kernel

Published 2025-12-24 · Updated 2026-03-24 · CVE-2023-54133

Positive Technologies (AI Summary)

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

Description A resource leak can occur in the Linux kernel when moving devices between namespaces. Multicast (mc) addresses are cleared in software but remain in application firmware, leading to a resource leak. The issue is addressed by utilizing the dev mc unsync function to properly clear mc addresses when a port is closed.

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

Exploit

Related Identifiers

CVE-2023-54133

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0293-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Linux Kernel

References · 1454

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54133.json · Exploit
• https://ubuntu.com/security/CVE-2023-54133 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54133 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-54133 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54133 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54133 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:0278-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54133 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54133 · Vendor Advisory