cve-2026-86547-mrubyc-op-enter

CVE-2026-86547 — mrubyc OPENTER NULL Pointer Dereference Standalone proof of concept for CVE-2026-86547 , a NULL pointer dereference in mrubyc's openter handler through release 4.0.0. Summary mrubyc is a lightweight Ruby implementation for embedded systems. Its bytecode VM keeps the current...

Exploit for CVE-2026-86547

CVE-2026-86547 — mrubyc OPENTER NULL Pointer Dereference S...

CVE-2026-86547

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...

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: NULL Pointer Dereference

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...

EUVD-2026-41976

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod...

CVE-2026-38973

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod...

CVE-2026-38973

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod...

CVE-2026-38976

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in opsuper / OPSUPER due to a missing runtime guard for top-level super...

CVE-2026-38976

The mrubyc compiler (versions through 3.4.1 ) contains a NULL pointer dereference vulnerability within the src/vm.c file. The issue specifically occurs in the op_super() function (OP_SUPER ) because of a missing runtime guard for top-level super. This flaw can lead to an availability impact , as ...

CVE-2026-38976

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in opsuper / OPSUPER due to a missing runtime guard for top-level super...

CVE-2026-38973

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod...

CVE-2026-38973: Out-of-bounds Read

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod...

PT-2026-56022

Name of the Vulnerable Software and Affected Versions mrubyc versions prior to 3.4.2 Description A NULL pointer dereference occurs in the src/vm.c file within the op super function OP SUPER. This issue is caused by a missing runtime guard for top-level super. Recommendations Update to version 3.4...

CVE-2026-38976

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in opsuper / OPSUPER due to a missing runtime guard for top-level super...

mrubyc through 3.4.1 was found to contain a NULL pointer dereference

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in opsuper / OPSUPER due to a missing runtime guard for top-level super...

PT-2026-56021

Name of the Vulnerable Software and Affected Versions mrubyc versions prior to 3.4.2 Description An out-of-bounds read occurs during the builtin missing-method lookup within the mrbc find method function. Recommendations Update to a version newer than 3.4.1. As a temporary mitigation, restrict th...

CVE-2026-38973

mrubyc through release3.4.1 was found to contain an out-of-bounds read in builtin missing-method lookup inside mrbcfindmethod...