PT-2025-26634 · Pbkdf2+6 · Pbkdf2+6

Chalker · CVE-2025-6545 · Published 2025-06-23 · Updated 2026-06-25

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: pbkdf2 versions 3.0.10 through 3.1.2

Description: The issue is related to an Improper Input Validation vulnerability in pbkdf2, allowing Signature Spoofing by Improper Validation. This vulnerability is associated with program files lib/to-buffer.js. The vulnerability is caused by the silent return of predictable uninitialized or zero-filled memory for non-normalized or unimplemented algorithms supported by Node.js.

Recommendations: For versions 3.0.10 through 3.1.2, update to a version that fixes the Improper Input Validation vulnerability to prevent Signature Spoofing. As a temporary workaround, consider restricting the use of non-normalized or unimplemented algorithms supported by Node.js until a patch is available.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2025-07453

CVE-2025-6545

GHSA-H7CP-R72F-JXH6

OPENSUSE-SU-2025:15280-1

OPENSUSE-SU-2026:11126-1

SUSE-SU-2025:3744-1

USN-8452-1

Affected Products

Debian

Linuxmint

Node.Js

Red Os

Suse

Ubuntu

Pbkdf2

References · 88

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6545.json · Exploit
• https://github.com/browserify/pbkdf2/commit/e3102a8cd4830a3ac85cd0dd011cc002fdde33bb · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-6545 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-07453 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-6545 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-6545 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-6545 · Security Note
• https://osv.dev/vulnerability/GHSA-h7cp-r72f-jxh6 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-6545 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3744-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-6545 · Security Note
• https://osv.dev/vulnerability/USN-8452-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8452-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15280-1 · Vendor Advisory