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High · 7.5 Public exploit CVE-2025-3194 EUVD-2025-9701GHSA-3gc7-fjrx-p6mg

bigint-buffer Vulnerable to Buffer Overflow via toBigIntLE() Function

Published Apr 4, 2025 · Updated Jul 18, 2026 · Assigned by snyk

Description

Versions of the package bigint-buffer from 0.0.0 are vulnerable to Buffer Overflow in the toBigIntLE() function. Attackers can exploit this to crash the application.

Affected products

VendorProductAffectedFixed
— bigint-buffer 0.0.0 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

  • LoserLab/bigint-buffer-safe ★ 1 · Mar 9, 2026

    Safe, pure-JS drop-in replacement for bigint-buffer. Fixes CVE-2025-3194 (CVSS 7.5). Zero dependencies, no native bindings.

  • disley15-collab/bigint-buffer-js ★ 0 · Sep 17, 2026

    Pure-JS drop-in for bigint-buffer@1.1.5 without the vulnerable native binding (CVE-2025-3194)

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
npm bigint-buffer <= 1.1.5 — GHSA-3gc7-fjrx-p6mg

References