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CVE-2026-1979

MEDIUM

5.3

Beschreibung

A flaw has been found in mruby up to 3.4.0. This affects the function mrb_vm_exec of the file src/vm.c of the component JMPNOT-to-JMPIF Optimization. Executing a manipulation can lead to use after free. The attack needs to be launched locally. The exploit has been published and may be used. This patch is called e50f15c1c6e131fa7934355eb02b8173b13df415. It is advisable to implement a patch to correct this issue.

CVE Details

CVSS v3.1 Bewertung5.3

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht2/6/2026

Zuletzt geandert2/28/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

mruby:mruby

Schwachen (CWE)

CWE-119CWE-416

Referenzen

https://github.com/mruby/mruby/(cna@vuldb.com)

https://github.com/mruby/mruby/issues/6701(cna@vuldb.com)

https://github.com/mruby/mruby/issues/6701#issue-3802609843(cna@vuldb.com)

https://github.com/sysfce2/mruby/commit/e50f15c1c6e131fa7934355eb02b8173b13df415(cna@vuldb.com)

https://vuldb.com/?ctiid.344501(cna@vuldb.com)

https://vuldb.com/?id.344501(cna@vuldb.com)

https://vuldb.com/?submit.743377(cna@vuldb.com)

IOC Korrelationen

Keine Korrelationen erfasst

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