CVE-2023-53969CWE-306

Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Password Change

Critical · published December 22, 2025

CVSS v4.0
9.3
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

🚨 An attacker can exploit a single IP address to bypass authentication entirely! This session management flaw in Screen SFT DAB 600/C firmware 1.9.3 is a game-changer for password security! 🔥 Think of it like a gym where someone can sneak in and use anyone's membership just by pretending to be in the same room — no check-ins, no ID needed. If they get in, they can change the password and take over! An attacker could easily take control of accounts by changing user passwords without any authentication checks. This means they could lock out legitimate users, access sensitive data, or impersonate others, resulting in absolutely devastating consequences for your security.

Put simply

Think of it like a gym where someone can sneak in and use anyone's membership just by pretending to be in the same room — no check-ins, no ID needed. If they get in, they can change the password and take over! This vulnerability arises from improper session handling that allows attackers to exploit IP address session binding, enabling unauthorized requests to the userManager API without valid authentication.

What to do

An attacker could easily take control of accounts by changing user passwords without any authentication checks. This means they could lock out legitimate users, access sensitive data, or impersonate others, resulting in absolutely devastating consequences for your security. Immediately patch to a fixed version if available, and review your session management practices to ensure stringent checks against IP address reuse. Regularly audit access logs for any suspicious activity related to user password changes. You've got this! Take these steps, and you'll fortify your defenses in no time! 🛡️

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00512 · 42.8th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-12-22T21:35Z
EPSS history
Timeline
  • 22 DEC 21:35Z
    Screen SFT DAB 600/C Firmware 1.9.3 Authentication Bypass Password Change
    cvelistv5