VulnerabilityPublished 22 Dec 2025

CVE-2023-53970: DB Elettronica Telecomunicazioni SpA Screen SFT DAB 600/C · Missing Authentication

Affects DB Elettronica Telecomunicazioni SpA Screen SFT DAB 600/CSource CVE Database V5

Not known to be exploited · CVSS 8.7 High.

Data as of 26 Oct 2026, 12:54 UTC

CVSS 4.0 base score

8.7High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: High
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: High: There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the Vulnerable System; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the Vulnerable System (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 22 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

Immediate mitigation should focus on restricting network access to the deviceManagement API endpoint by implementing strict firewall rules and network segmentation to limit exposure to trusted management networks only.
Monitor network traffic for unusual POST requests targeting the deviceManagement API, especially those with anomalous session parameters.
Engage with DB Elettronica Telecomunicazioni SpA to obtain firmware updates or patches addressing this vulnerability as soon as they become available.
If patches are not yet available, consider deploying compensating controls such as VPN access for management interfaces and multi-factor authentication at the network perimeter.
Conduct regular audits of device configurations to detect unauthorized resets or changes promptly.
Implement intrusion detection/prevention systems (IDS/IPS) with signatures or anomaly detection tuned to identify exploitation attempts targeting this vulnerability.
Educate network administrators about this vulnerability and the importance of securing management interfaces against unauthorized access.

Description

Screen SFT DAB 600/C Firmware 1.9.3 contains a weak session management vulnerability that allows attackers to bypass authentication controls by reusing IP-bound session identifiers. Attackers can exploit the vulnerable deviceManagement API endpoint to reset device configurations by sending crafted POST requests with manipulated session parameters.

Impact

The vulnerability poses a significant risk to European organizations that deploy the Screen SFT DAB 600/C device, particularly in telecommunications and critical infrastructure sectors. Exploitation could lead to unauthorized resets of device configurations, potentially causing service outages, degraded network performance, or loss of control over critical telecom equipment. This could disrupt communication services, impacting businesses, emergency services, and government operations. The lack of authentication and ease of remote exploitation increase the likelihood of attacks, especially from threat actors targeting telecom infrastructure. The integrity and availability of the device are directly affected, which could cascade into broader network instability. Given the strategic importance of telecom infrastructure in Europe, successful exploitation could also have national security implications. The absence of known exploits in the wild suggests the vulnerability is not yet actively exploited, but the high severity score indicates urgent attention is required to prevent future attacks.

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 22 Dec 2025, 22:15 UTC

Technical details

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