Raw vector
CVSS:4.0/AV:A/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:XCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-53776 is a high-severity Session Fixation (CWE-384) vulnerability in Dbbroadcast Sft Dab 600\/C Firmware. Its CVSS base score is 8.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked at the 40th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SC-23 (Session Authenticity) and AC-12 (Session Termination) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2023-53776 is an authentication bypass vulnerability in Screen SFT DAB version 1.9.3, caused by weak session management that permits attackers to reuse IP-bound session identifiers. This flaw affects the software component used for managing Digital Audio Broadcasting (DAB) transmitters, enabling exploitation of the session binding mechanism to issue unauthorized requests to the device management API and perform critical operations on the transmitter. The vulnerability is classified under CWE-384 (Session Fixation) with a CVSS v3.1 base score of 8.8 (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Attackers on an adjacent network (AV:A) can exploit this without prior authentication (PR:N) or user interaction (UI:N) by capturing a legitimate session identifier bound to a specific IP address and reusing it for malicious requests. Successful exploitation allows high-impact compromise of confidentiality, integrity, and availability, granting unauthorized control over transmitter operations via the device management API.
Advisories, including those from VulnCheck and references on vendor sites like DB Broadcast and Screen, provide details on the authentication bypass via session management weakness. A proof-of-concept exploit is publicly available on Exploit-DB (ID 51459), highlighting the need to review these resources for detection and mitigation guidance.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-60183
Vulnerability Data
Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to exploit weak session management by reusing IP-bound session identifiers. Attackers can issue unauthorized requests to the device management API by leveraging the session binding mechanism to perform…
more
critical operations on the transmitter.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V4.4.4V7.6.2
Mitigating Controls (NIST 800-53 r5) AI
Requires protection of session authenticity, which directly stops an attacker from using a stolen or fixed session identifier after authentication.
Limits the lifetime of any session (fixed or not), thereby reducing the window during which a stolen identifier remains usable.
Enforces that only properly authorized (i.e., freshly authenticated) sessions can access resources, making a pre-existing fixed session ID unusable.
Forces re-authentication under defined conditions, which should result in issuance of a fresh session identifier and invalidation of any prior one.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Managing identities and credentials includes handling session identifiers as temporary credentials that must be invalidated on re-authentication.
Proper authentication processes must invalidate prior session identifiers to prevent fixation attacks.
Protecting and verifying identity assertions encompasses secure handling and regeneration of session tokens.
Configuration baselines can enforce session regeneration and timeout settings that block fixation.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.