---
title: "Security digest: June 23, 2025"
url: https://erroneo.us/security/2025-06-23/
description: "June 23, 2025 vulnerability digest: 2 critical advisories (npm). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2025-06-23
date_modified: 2025-06-23
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: June 23, 2025

2 critical advisories.

## Take stock

- npm: 2 critical advisories ( pbkdf2 ). Check with npm audit (or: npm ls <package>) .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

None.

## Critical advisories

- [CVE-2025-6547](https://erroneo.us/security/cve/CVE-2025-6547/index.md) pbkdf2 silently disregards Uint8Array input, returning static keys — npm pbkdf2 >= 1.0.0, <= 3.1.2 → 3.1.3
- [CVE-2025-6545](https://erroneo.us/security/cve/CVE-2025-6545/index.md) pbkdf2 returns predictable uninitialized/zero-filled memory for non-normalized or unimplemented algos — npm pbkdf2 >= 3.0.10, <= 3.1.2 → 3.1.3

---
Source page: https://erroneo.us/security/2025-06-23/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt