Mruby

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CVE-2026-1979 LOW POC PATCH Monitor

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.

Buffer Overflow Denial Of Service Mruby

NVD GitHub VulDB

CVSS 4.0

1.9

EPSS

0.0%

CVE-2026-1979

EPSS 0% CVSS 1.9

LOW POC PATCH Monitor

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.

Buffer Overflow Denial Of Service Mruby

NVD GitHub VulDB

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