PT-2025-49642 · Linux · Linux Kernel

Published 2025-12-09 · Updated 2026-03-24 · CVE-2023-53782

Positive Technologies (AI Summary)

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

Description An out-of-bounds access issue existed in the DCCP error handlers. A previous fix incorrectly assumed the error handlers only accessed the first 8 bytes of the DCCP header. However, they also access the DCCP sequence number, which is located beyond 8 bytes, requiring an explicit pskb may pull() function call.

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

Exploit

Related Identifiers

CVE-2023-53782

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 · 1463

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53782.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-53782 · Security Note
• https://cve.org/CVERecord?id=CVE-2023-53782 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53782 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · 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://ubuntu.com/security/CVE-2023-53782 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0278-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-53782 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53782 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0315-1 · Vendor Advisory