Mruby

3 CVEs product

Monthly

CVE-2026-1979 MEDIUM POC PATCH This Month

Use-after-free memory corruption in mruby up to version 3.4.0 within the JMPNOT-to-JMPIF optimization logic allows local attackers with user-level privileges to corrupt memory and potentially execute arbitrary code. Public exploit code exists for this vulnerability, and a patch is available. Affected systems should apply the available security update promptly.

Ruby Use After Free Mruby Suse
NVD GitHub VulDB
CVSS 3.1
5.3
EPSS
0.0%
CVE-2025-13120 MEDIUM PATCH Monitor

A vulnerability has been found in mruby up to 3.4.0. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.

Denial Of Service Buffer Overflow Mruby Suse
NVD GitHub VulDB
CVSS 4.0
4.8
EPSS
0.0%
CVE-2025-12875 MEDIUM PATCH Monitor

A weakness has been identified in mruby 3.4.0. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.

Buffer Overflow Mruby Suse
NVD GitHub VulDB
CVSS 4.0
4.8
EPSS
0.0%
CVE-2026-1979
EPSS 0% CVSS 5.3
MEDIUM POC PATCH This Month

Use-after-free memory corruption in mruby up to version 3.4.0 within the JMPNOT-to-JMPIF optimization logic allows local attackers with user-level privileges to corrupt memory and potentially execute arbitrary code. Public exploit code exists for this vulnerability, and a patch is available. Affected systems should apply the available security update promptly.

Ruby Use After Free Mruby +1
NVD GitHub VulDB
CVE-2025-13120
EPSS 0% CVSS 4.8
MEDIUM PATCH Monitor

A vulnerability has been found in mruby up to 3.4.0. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.

Denial Of Service Buffer Overflow Mruby +1
NVD GitHub VulDB
CVE-2025-12875
EPSS 0% CVSS 4.8
MEDIUM PATCH Monitor

A weakness has been identified in mruby 3.4.0. Rated medium severity (CVSS 4.8), this vulnerability is low attack complexity. This Buffer Overflow vulnerability could allow attackers to corrupt memory to execute arbitrary code or crash the application.

Buffer Overflow Mruby Suse
NVD GitHub VulDB

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