CVE-2026-12080

CVE-2026-12080 affects the QEMU Guest Agent (qga). A local, unprivileged user can exploit the guest-ssh-add-authorized-keys handler by manipulating symbolic links through a deterministic directory-symlink bypass or a TOCTOU file-symlink race, enabling ownership of arbitrary root-owned files/direc...

CVE-2026-64091

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix TOCTOU race for reported vlans The local TT based TVLV is generated by first checking the number of VLANs which have at least one TT entry. A new buffer with the correct size for the VLANs is then allocated...

CVE-2026-64112 rbd: eliminate a race in lock_dwork draining on unmap

In the Linux kernel, the following vulnerability has been resolved: rbd: eliminate a race in lockdwork draining on unmap Given how rbdlockaddrequest and rbdimgexclusivelock are written, lockdwork may be requeued more than it's actually needed: for example in case a new I/O request comes in while ...

CVE-2026-64112

In the Linux kernel, the following vulnerability has been resolved: rbd: eliminate a race in lockdwork draining on unmap Given how rbdlockaddrequest and rbdimgexclusivelock are written, lockdwork may be requeued more than it's actually needed: for example in case a new I/O request comes in while ...

CVE-2026-64091

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: fix TOCTOU race for reported vlans The local TT based TVLV is generated by first checking the number of VLANs which have at least one TT entry. A new buffer with the correct size for the VLANs is then allocated...

CVE-2026-63867

In the Linux kernel, the following vulnerability has been resolved: mptcp: close TOCTOU race while computing rcvwnd The MPTCP output path access locklessly the MPTCP-level ackseq in multiple times, using possibly different values for the dataack in the DSS option and to compute the announced rcv...

EUVD-2026-45710

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Use READONCE when reading entries/indices from PSC buffer Use READONCE when reading entries/indices from the guest-accessible Page State Change buffer to defend against TOCTOU bugs. Don't bother with READONCE/WRITEONCE...

CVE-2026-63867

CVE-2026-63867 : In the Linux kernel, a TOCTOU race in MPTCP was resolved in the rcv_wnd computation. The MPTCP output path locklessly accesses the MPTCP-level ack_seq multiple times, potentially using different data_ack values from the DSS option to compute the announced rcv_wnd for the same pac...

CVE-2026-53411 Zoom Workplace VDI Plugin for Windows - Improper Input Validation

A time-of-check to time-of-use TOCTOU race condition in the installation and uninstallation process of certain Zoom Clients for Windows could allow an authenticated local user to escalate privileges...

CVE-2026-53411

CVE-2026-53411 affects Zoom Workplace VDI Plugin for Windows prior to 6.6.14. The issue is described in CVE sources as an improper input validation that could enable an authenticated local user to escalate privileges. Exploitation details are not provided in the documents. The CVSS v3.1 base scor...

Zoom Patches Critical Windows Flaw That Could Enable Account Takeover

Zoom has released security updates for a critical security flaw impacting Zoom Workplace for Windows that could facilitate account takeover. The vulnerability, tracked as CVE-2026-53412 CVSS score: 9.8, affects Zoom Workplace for Windows before version 7.0.0 and Zoom Workplace VDI Client for...

rsync security, bug fix, and enhancement update

3.4.4-1 - Resolves: RHEL-181630 - Rebase rsync to version 3.4.4 - Resolves: RHEL-174929 - TOCTOU symlink race condition CVE-2026-29518 - Resolves: RHEL-174949 - Memory disclosure via int overflow CVE-2026-43618 3.4.1-3 - Resolves: RHEL-118549 - Do not clear DISPLAY unconditionally...

CVE-2026-4018

TOCTOU Race Condition in specific trace commands of the TraceEvent system call could allow an attacker with local access and with the PROCMGRAIDTRACE ability, to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel...

CVE-2026-4018

CVE-2026-4018 describes a TOCTOU race condition in specific trace commands of the TraceEvent() system call in the QNX Neutrino kernel, affecting versions of the QNX Software Development Platform and QNX OS for Safety. The vulnerability could allow a local attacker with PROCMGR_AID_TRACE privilege...

UBUNTU-CVE-2026-55950

Time-of-check Time-of-use TOCTOU race condition vulnerability in Erlang/OTP ssl dtlspacketdemux module allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtlspacketdemux genserver process to route incoming UDP...

EUVD-2026-41414

Time-of-check Time-of-use TOCTOU race condition vulnerability in Erlang/OTP ssl dtlspacketdemux module allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener. A DTLS server listener uses a single shared dtlspacketdemux genserver process to route incoming UDP...

CVE-2026-55950

This CVE (CVE-2026-55950) describes a TOCTOU race in Erlang/OTP ssl (dtls_packet_demux.erl) where a DTLS listener’s shared demux process can be crashed by an unauthenticated remote attacker sending rapid ClientHello datagrams from the same source IP/port. The race in the internal gb_trees store l...

CVE-2026-12374

Improper certificate validation and a time-of-check time-of-use TOCTOU race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller...

CVE-2026-12374

CVE-2026-12374 affects the macOS PrivilegedHelperTool in Cato Client prior to v5.13.1. The issue combines improper XPC caller certificate validation with a TOCTOU race, allowing a local authenticated attacker to escalate to root by using a self-signed certificate that bypasses XPC caller verifica...

EUVD-2026-41001

Improper certificate validation and a time-of-check time-of-use TOCTOU race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller...