CVE-2023-53740: Dbbroadcast Sft Dab 015/c Firmware broken access control (CVSS 9.8)

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Dbbroadcast Sft Dab 015/c Firmware1.9.3

Dbbroadcast Sft Dab 050/c Firmware1.9.3

Dbbroadcast Sft Dab 150/c Firmware1.9.3

Dbbroadcast Sft Dab 300/c Firmware1.9.3

Dbbroadcast Sft Dab 600/c Firmware1.9.3

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

https://www.dbbroadcast.comProduct
https://www.dbbroadcast.com/products/radio/sft-dab-series-compact-air/Product
https://www.exploit-db.com/exploits/51458ExploitThird Party Advisory
https://www.screen.itProduct
https://www.vulncheck.com/advisories/screen-sft-dab-authentication-bypass-via-admin-password-changeThird Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5774.phpThird Party AdvisoryExploit

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2023-53740 being actively exploited?

CVE-2023-53740 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.88%.

How severe is CVE-2023-53740?

CVE-2023-53740 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.88% probability of exploitation.

Which products are affected by CVE-2023-53740?

Affected products include Dbbroadcast Sft Dab 015/c Firmware, Dbbroadcast Sft Dab 050/c Firmware, Dbbroadcast Sft Dab 150/c Firmware, Dbbroadcast Sft Dab 300/c Firmware, Dbbroadcast Sft Dab 600/c Firmware.

How do I fix CVE-2023-53740?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-53740 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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