Skip to content
Patch Next
Sign inAdd to your agent

← Actionable
High, CVSS 7.7amended

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

CVE-2025-3194GHSA-3gc7-fjrx-p6mg

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Add to your agent

Affected packages

  • npm bigint-buffer

    Affected
    <= 1.1.5
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
7.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · score source
EPSS
  • CVE-2025-3194: 0.74% estimated exploitation activity in the next 30 days; percentile 54.56 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Versions of the package bigint-buffer from 0.0.0 to 1.1.5 are vulnerable to Buffer Overflow in the toBigIntLE() function. Attackers can exploit this to crash the application.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-3gc7-fjrx-p6mg

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-3gc7-fjrx-p6mg

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-3194

Advisory: bigint-buffer Vulnerable to Buffer Overflow via toBigIntLE() Function
IDs: CVE-2025-3194, GHSA-3gc7-fjrx-p6mg
Record: https://patchnext.com/advisories/cve-2025-3194 (revision 3, source checked 26 Oct 2026, 12:36 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.7)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm bigint-buffer: affected <= 1.1.5

## Suggested inspection (read-only)
- `npm ls bigint-buffer --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on bigint-buffer.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-3gc7-fjrx-p6mg (OSV record GHSA-3gc7-fjrx-p6mg lists affected ranges: npm bigint-buffer >=0 <=1.1.5)
- Verified: https://github.com/advisories/GHSA-3gc7-fjrx-p6mg (GitHub-reviewed advisory GHSA-3gc7-fjrx-p6mg lists affected ranges: npm bigint-buffer >=0 <=1.1.5)

Commands are suggestions: review each one before running it.

Loading voting…