CVE-2026-86547

Katalog CVE

CVSS 6.2 · Medium EPSS 0,18%

Kerentanan NULL Pointer Dereference. Skor CVSS 3.1 6.2 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

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 service.

Rincian

Terbit di NVD

9 September 2026

Terakhir diubah

10 September 2026

Status NVD

Deferred

CVSS 3.1

6.2 (Medium), sumber vulncheck.com
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 7,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/mrubyc/mrubyc/blob/4261cf5e5ae5579e3110dab98a04b91c7d919429/src/vm.c#L1534
• https://github.com/mrubyc/mrubyc/blob/release4.0.0/src/vm.c#L1537
• https://www.vulncheck.com/advisories/mrubyc-through-4.0.0-null-pointer-dereference-via-op-enter