CVE-2023-53967

Screen SFT DAB 600/C firmware 1.9.3 contains an authentication bypass vulnerability that allows attackers to change the admin password without requiring the current credentials. Attackers can exploit the userManager.cgx API endpoint by sending a crafted POST request with a new MD5-hashed password to directly modify the admin account's authentication.

CVSS v4.0

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.52% chance of exploitation in the next 30 days, 42th percentile

Published

2025-12-22

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51458

References

• CVE Record
• NVD entry

Related

• CVE-2023-53966
• CVE-2023-53968
• CVE-2023-53965
• CVE-2023-53969
• CVE-2023-53964
• CVE-2023-53970