CVE-2026-45253

The FreeBSD operating system contains a privilege escalation vulnerability in the ptrace(2) system call. Specifically, ptrace(PT_SC_REMOTE) fails to properly validate parameters for the syscall(2) and __syscall(2) meta-system calls. This missing validation allows an unprivileged local user with t...

9-Year-Old Linux Kernel Flaw Enables Root Command Execution on Major Distros

Cybersecurity researchers have disclosed details of a vulnerability in the Linux kernel that remained undetected for nine years. The vulnerability, tracked as CVE-2026-46333 CVSS score: 5.5, is a case of improper privilege management that could permit an unprivileged local user to disclose...

PT-2026-42400

Name of the Vulnerable Software and Affected Versions fusefs affected versions not specified Description When a fusefs file system implements extended attributes, the kernel may send a FUSE LISTXATTR message to the userspace daemon to retrieve the list of extended attributes for a file. The FUSE...

PT-2026-42403

Name of the Vulnerable Software and Affected Versions FreeBSD bsdinstall/bsdconfig affected versions not specified Description When bsdinstall or bsdconfig are prompted to scan for nearby Wi-Fi networks, they compile a list of network names and use the bsddialog1 function to prompt the user for...

PT-2026-42397

Name of the Vulnerable Software and Affected Versions FreeBSD libcasper3 affected versions not specified Description libcasper3 communicates with helper processes via UNIX domain sockets and utilizes the select2 system call to wait for available data. The software fails to verify if the socket...

MiracleLinux 9 : kernel-5.14.0-611.54.6.el9_7 (AXSA:2026-692:35)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-692:35 advisory. kernel: net: skbuff: propagate shared-frag marker through frag-transfer helpers CVE-2026-46300 kernel: ptrace: require CAPSYSPTRACE when task has no ...

FreeBSD : FreeBSD -- Missing validation in ptrace(PT_SC_REMOTE) (6c96da5e-54b6-11f1-8d7a-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 6c96da5e-54b6-11f1-8d7a-bc241121aa0a advisory. ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls...

CVE-2026-45253: Out-of-bounds Write

ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls. As a result, a user with the ability to debug a process may trigger arbitrary code execution in the kernel, even if the target process has no special privileges. The missing validation allows ...

TencentOS Server 4: kernel (TSSA-2026:0334)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0334 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

PT-2026-42402

Name of the Vulnerable Software and Affected Versions cap net service affected versions not specified Description An issue exists in the cap net service where omitting a key from a new limit that was present in the old limit causes the missing key to be treated as allow any instead of being...

PT-2026-42399

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A use-after-free issue exists where a file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that descriptor. Since the blocked thread does not ho...

FreeBSD 缓冲区错误漏洞

FreeBSD is a Unix-like operating system developed by the FreeBSD Foundation. FreeBSD has a buffer error vulnerability, which stems from ptracePTSCREMOTE failing to properly validate the parameters of syscall2 and syscall2 system calls. This vulnerability may allow users with debugging capabilitie...

CVE-2026-46333: Local Root Privilege Escalation and Credential Disclosure in the Linux Kernel ptrace Path

The Qualys Threat Research Unit TRU has discovered and published the full advisory for CVE-2026-46333, a logic flaw in the Linux kernel's ptracemayaccess function that permits an unprivileged local user to disclose sensitive files and execute arbitrary commands as root on default installations of...

Advisory ROSA-SA-2026-3290

software: kernel-5.15 5.15.193 WASP: ROSA-CHROME unaffected versions = kernel-5.15-5.15.193-6 affected versions data.opnents field during buffer management. By exploiting the RDS TCP transport SORDSTRANSPORT=2 in conjunction with iouring, a local unprivileged attacker can cause memory corruption...

Advisory ROSA-SA-2026-3289

software: kernel-6.1 6.1.152 OS: ROSA-CHROME unaffected versions = kernel-6.1-6.1.1.152-4 affected versions data.opnents field during buffer management. By exploiting the RDS TCP transport SORDSTRANSPORT=2 in conjunction with iouring, a local unprivileged attacker can cause memory corruption and...

Advisory ROSA-SA-2026-3288

software: kernel-6.6 6.6.126 WASP: ROSA-CHROME unaffected versions = kernel-6.6-6.6.6.126-6 affected versions data.opnents field during buffer management. By exploiting the RDS TCP transport SORDSTRANSPORT=2 in conjunction with iouring, a local unprivileged attacker can cause memory corruption an...

Advisory ROSA-SA-2026-3287

software: kernel-6.12 6.12.74 WASP: ROSA-CHROME unaffected versions = kernel-6.12-6.12.74-13 affected versions data.opnents field during buffer management. By exploiting the RDS TCP transport SORDSTRANSPORT=2 in conjunction with iouring, a local unprivileged attacker can cause memory corruption a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64/fpsimd: ptrace: Fixed SVE writes on !SME systems When SVE is supported but SME is not supported, a ptrace write to NTARMSVE regset can place the tracee into an invalid state. In this state, non-streaming SVE register data i...

Unbreakable Enterprise kernel security update

6.12.0-202.76.4.3 - ptrace: slightly saner 'getdumpable' logic Linus Torvalds Orabug: 39391434 CVE-2026-46333...

FreeBSD-SA-26:21.ptrace

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:21.ptrace Security Advisory The FreeBSD Project Topic: Missing validation in ptracePTSCREMOTE Category: core Module: ptrace Announced: 2026-05-20 Credits:...