CVE-2020-23914

PoC —

CVSS 3.1

5.5 medium

EPSS

<1%p57

Published

Apr 21, 2021 (Apr 21, 2021)

Modified

Jun 17, 2026

Description

An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.

Vendors: cpp-peglib project
Products: cpp-peglib
Weakness: CWE-476
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.9%)

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