AUGUST 27, 2026
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Case File

CVE-2026-53147

HIGH · CVSS 8.1 EPSS 0.27%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-25 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. It affects Linux.

CVE
CVE-2026-53147
Severity
HIGH
CVSS
8.1
EPSS
0.27%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send a minimal XDomain packet that passes the generic header length check but is shorter than the struct accessed after the cast, causing out-of- bounds reads from the kmemdup allocation. Plumb the packet length through xdomain_request_work and validate it against the expected struct size before each cast.

Related CVEs

Other vulnerabilities affecting the same vendor(s)