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Vendor

mrubyc

1 known vulnerabilities.

mrubyc at a glance

Last 12 months
1
Critical · all time
0
Exploited · all time
0
Public exploit · all time
1
New vulnerabilities per month · last 12 months
0 1 1 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 1 vulnerability Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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Most common weaknesses

Products

mrubyc 1
All Critical High Medium Low Exploited only Public exploit

1 result · Feed

  • Medium 6.2
    CVE-2026-86547 Public exploit

    mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER

    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 embeddi…

    mrubyc mrubyc