CVE-2023-53968: Screen SFT DAB 600/C Firmware 1.9.3 contains a session management vulnerability that allows attackers to bypas

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CRITICAL 9.8REMOTEMITIGATE

CVE-2023-53968 is a critical-severity flaw (CVSS 9.8) affecting sft dab 600\/c firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Screen SFT DAB 600/C Firmware 1.9.3 contains a session management vulnerability that allows attackers to bypass authentication controls by exploiting IP address session binding. Attackers can reuse the same IP address and issue unauthorized requests to the userManager API to remove user accounts without proper authentication.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
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	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-306
Published	2025-12-22
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: dbbroadcast

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-22 22:16 UTCPublished CVE record published
2026-06-17 06:46 UTCUpdated Record last modified

dbbroadcast sft dab 600\/c firmware MITIGATE

Affected: 1.9.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.9.3

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · conan · FIXED · 2.31.0-1.fc46 · FEDORA-2026-ba58084ab5 · source

sudo dnf upgrade --advisory=FEDORA-2026-ba58084ab5

Fedora ELN · tesseract · FIXED · 5.5.4-1.eln159 · FEDORA-2026-866cf60ee6 · source

sudo dnf upgrade --advisory=FEDORA-2026-866cf60ee6

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/51457
Write-up: www.zeroscience.mk/en/vulnerabilities/ZSL-2023-5773.php

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2023-53968?

sft dab 600\/c firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-53968 being exploited?

CVE-2023-53968 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-2023-53968 affect?

CVE-2023-53968 affects sft dab 600\/c firmware. Severity is critical (CVSS 9.8). Screen SFT DAB 600/C Firmware 1.9.3 contains a session management vulnerability that allows attackers to bypass authentication controls by exploiting IP address session binding. Attackers can reuse the same IP address and issue unauthorized

How urgent is CVE-2023-53968?

Priority 60/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-53969 HIGH 7.5 MITIGATE Screen SFT DAB 600/C firmware 1.9.3 contains a session management vulnerability that allows attackers to bypas
CVE-2023-7328 MEDIUM 5.3 UPGRADE Screen SFT DAB 600/C firmware versions up to and including 1.9.3 contain an improper access control on the use
CVE-2023-53970 HIGH 7.5 MITIGATE Screen SFT DAB 600/C Firmware 1.9.3 contains a weak session management vulnerability that allows attackers to
CVE-2023-53967 HIGH 7.5 MITIGATE Screen SFT DAB 600/C firmware 1.9.3 contains an authentication bypass vulnerability that allows attackers to c
CVE-2023-53776 HIGH 8.8 MITIGATE Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to exploit weak ses

References

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