PatchTheCVECVE-2023-53740: Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to change the admin
CVE-2023-53740 is a critical-severity flaw (CVSS 9.8) affecting sft dab 015\/c firmware, sft dab 050\/c firmware, sft dab 150\/c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to change the admin password without providing the current credentials. Attackers can exploit the userManager.cgx endpoint by sending a crafted JSON request with a new MD5-hashed password to directly modify the admin account.
Why this priority
- Critical severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.9% (top 41%) |
| CISA exploited list | No |
| Weakness | CWE-862 |
| Published | 2025-12-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: www.exploit-db.com/exploits/51458
- Write-up: www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5774.php
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-53740?
sft dab 015\/c firmware: mitigate or apply the listed mitigation; sft dab 050\/c firmware: mitigate or apply the listed mitigation; sft dab 150\/c firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2023-53740 being exploited?
CVE-2023-53740 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-53740 affect?
CVE-2023-53740 affects sft dab 015\/c firmware, sft dab 050\/c firmware, sft dab 150\/c firmware. Severity is critical (CVSS 9.8). Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to change the admin password without providing the current credentials. Attackers can exploit the userManager.cgx endpoint by sending a crafted JSON
How urgent is CVE-2023-53740?
Priority 59/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action
Related CVEs
- CVE-2023-53741 HIGH 8.1 MITIGATE MITIGATE Screen SFT DAB 1.9.3 contains a weak session management vulnerability that allows attackers to bypass authenti