CVE-2025-11625CWE-287

CVE-2025-11625

Critical · published October 21, 2025

CVSS v3.1
9.8
EPSS
0%
Percentile
36.6
In the wild
Unconfirmed
What it is

🔥 A sneaky authentication flaw in wolfSSH could let attackers bypass host checks entirely, leaking your clients' credentials! Think of it like a hotel that lets anyone check in without verifying their ID — the front desk is just taking anyone at their word, which opens the door to trouble! This vulnerability could allow an adversary to waltz right in, access sensitive data, and impersonate legitimate users, leading to potentially catastrophic data breaches! The implications are absolutely devastating — if credentials get leaked, it could mean complete control over systems. 🚨

Put simply

Think of it like a hotel that lets anyone check in without verifying their ID — the front desk is just taking anyone at their word, which opens the door to trouble! The improper host authentication vulnerability in wolfSSH versions 1.4.20 and earlier allows attackers to bypass crucial authentication mechanisms, leading to unauthorized access and credential leaks.

What to do

This vulnerability could allow an adversary to waltz right in, access sensitive data, and impersonate legitimate users, leading to potentially catastrophic data breaches! The implications are absolutely devastating — if credentials get leaked, it could mean complete control over systems. 🚨 Update wolfSSH to version 1.4.21 or later immediately to close this vulnerability. Implement strict host verification practices to ensure your clients' credentials stay safe. Regular audits of your security measures can help spot similar issues before they become problems! You've got this! With these steps, you'll be on your way to locking down your security like a pro. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00433 · 36.6th percentile
Weakness
CWE-287 · Improper Authentication
Published
2025-10-21T18:15Z
Affected products (1)
ProductVersionsFixed in
wolfssh/wolfssh≤ 1.4.20—
References (1)
EPSS history
Timeline
  • 21 OCT 13:25Z
    Host verification bypass and credential leak
    cvelistv5