CVE-2026-86547 mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER

mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the openter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OPENTER instructions at the top level to crash the embedding application and cause denial of service...

CVE-2026-86547 mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER

mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the openter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OPENTER instructions at the top level to crash the embedding application and cause denial of service...

CVE-2026-86547 mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER

mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the openter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OPENTER instructions at the top level to crash the embedding application and cause denial of service...

CVE-2026-86547

mruby-c (mrubyc) through 4.0.0 contains a null pointer dereference in the op_enter() handler in src/vm.c when processing untrusted bytecode. An attacker can craft malicious .mrb bytecode files with OP_ENTER instructions at the top level to crash the embedding application, resulting in denial of s...

FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests

A flaw was found in FreeRDP. When smartcard emulation is enabled, a remote attacker can send specially crafted smartcard cache requests to a FreeRDP client. This can lead to a null pointer dereference, causing the client process to terminate and disrupting active remote desktop sessions...

RLSA-2026:64791 Critical: 389-ds:1.4 security, bug fix, and enhancement update

389 Directory Server is an LDAP version 3 LDAPv3 compliant server. The base packages include the Lightweight Directory Access Protocol LDAP server and command-line utilities for server administration. Security Fixes: 389-ds-base: 389-ds-base: heap buffer overflow via SASL wrapped-record length...

389-ds:1.4 security, bug fix, and enhancement update

An update is available for module.389-ds-base, 389-ds-base. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list 389 Directory Server is an LDAP version 3 LDAPv3...

kernel: net: atm: fix crash due to unvalidated vcc pointer in sigd_send()

A flaw was found in the Linux kernel's Asynchronous Transfer Mode ATM networking component. A local attacker, by acting as a malicious signaling daemon, could send a specially crafted message containing an unvalidated pointer. This unvalidated pointer would be directly used by the kernel, leading...

SUSE CVE-2026-18453

A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of opsharedsearch allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USEONEBACKEND control, resulting in denial of servic...

CVE-2026-15460: Operation on Resource in Wrong Phase of Lifetime

The Bluetooth Classic BR/EDR L2CAP receive handler btl2capbrrecv in subsys/bluetooth/host/classic/l2capbr.c dispatched inbound data PDUs based only on the destination channel ID, without checking that the target channel had reached the BTL2CAPCONNECTED state. A dynamic channel is assigned its RX...

PT-2026-88913

mrubyc through 4.0.0 contains a null pointer dereference vulnerability in the op enter handler in src/vm.c when processing untrusted bytecode. Attackers can craft malicious .mrb bytecode files with OP ENTER instructions at the top level to crash the embedding application and cause denial of servi...

CVE-2025-51619

A vulnerability in the Thesycon DPC Latency Checker driver dpc.sys thru 1.4.0 allows local unprivileged users to cause a denial-of-service BSOD condition on Windows systems. The driver exposes an IOCTL interface 0x81772008 that accepts user-controlled input without validating pointers before...

CVE-2025-51619

The Thesycon DPC Latency Checker driver (dpc.sys) versions through 1.4.0 on Windows systems contains a vulnerability allowing local unprivileged users to cause a denial-of-service (BSOD) . The root cause is an improper input validation flaw in an IOCTL interface (0x81772008), where the driver der...

EUVD-2025-210885

A vulnerability in the Thesycon DPC Latency Checker driver dpc.sys thru 1.4.0 allows local unprivileged users to cause a denial-of-service BSOD condition on Windows systems. The driver exposes an IOCTL interface 0x81772008 that accepts user-controlled input without validating pointers before...

PT-2026-89122

A vulnerability in the Thesycon DPC Latency Checker driver dpc.sys thru 1.4.0 allows local unprivileged users to cause a denial-of-service BSOD condition on Windows systems. The driver exposes an IOCTL interface 0x81772008 that accepts user-controlled input without validating pointers before...

PT-2026-89182

The Bluetooth Classic BR/EDR L2CAP receive handler bt l2cap br recv in subsys/bluetooth/host/classic/l2cap br.c dispatched inbound data PDUs based only on the destination channel ID, without checking that the target channel had reached the BT L2CAP CONNECTED state. A dynamic channel is assigned i...

CVE-2025-51619

A vulnerability in the Thesycon DPC Latency Checker driver dpc.sys thru 1.4.0 allows local unprivileged users to cause a denial-of-service BSOD condition on Windows systems. The driver exposes an IOCTL interface 0x81772008 that accepts user-controlled input without validating pointers before...

Linux kernel bonding DoS

The vulnerability in the bondenslave function within the drivers/net/bonding/bondmain.c file of the Linux kernel network device driver is related to dereferencing pointers. Exploitation of this vulnerability may allow an attacker to cause a denial of service...

Linux Kernel Kexec Handover Buffer Overflow DoS

The vulnerability of the khofillkimage function in the kernel/liveupdate/kexechandover.c module of the Linux operating system is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

Linux net/sched/sch_dualpi2 Heap Buffer Overflow DoS

The vulnerability of the dualpi2qdiscenqueue function in the net/sched/schdualpi2.c module of the Linux kernel is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...