CVE-2023-1443
Filseclab Twister Antivirus 8.0
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-1443 is a medium-severity Improper Resource Shutdown or Release (CWE-404) vulnerability in Filseclab Twister Antivirus. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 24% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
A vulnerability exists in Filseclab Twister Antivirus 8 within the fildds.sys driver component, specifically the IoControlCode Handler at function 0x80112053. The flaw, tracked as CWE-404, arises from improper resource handling that permits denial of service when the function receives manipulated input. It carries a CVSS 3.1 score of 6.5 reflecting network attack vector, low complexity, and high availability impact.
An unauthenticated remote attacker can trigger the issue by sending crafted IOCTL requests to the driver, with user interaction required on the target system. Successful exploitation produces a denial-of-service condition that disrupts antivirus operation while leaving data confidentiality and integrity intact. Public proof-of-concept code demonstrating the attack has been released on GitHub and file-sharing sites.
The EPSS probability rose from a low baseline to a peak of 0.0785 on 2025-01-22 before receding to the current value of 0.0096, indicating a temporary increase in exploitation interest after disclosure. No vendor advisory or patch information appears among the referenced sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-23693
Vulnerability Data
A vulnerability was found in Filseclab Twister Antivirus 8. It has been declared as problematic. This vulnerability affects the function 0x80112053 in the library fildds.sys of the component IoControlCode Handler. The manipulation leads to denial of service. The attack can…
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be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-223288.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Contingency plan updates incorporate proper resource shutdown and release steps, preventing attackers from leveraging incomplete cleanup during recovery scenarios.
Mandates explicit shutdown of the network connection at session conclusion, directly addressing improper resource release.
Requires proper shutdown/release procedures that include overwriting or isolating data to block unintended transfer via reused system objects.
Procedures can mandate orderly shutdown or release of resources when failures occur, preventing improper resource handling after a fault.
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.
documenting procedures for secure operation, error handling, restart/recovery and resource management (including references to 8.13/8.18) is a governance and dependency control that does not itself stop exploitation of a resource-shutdown flaw; any prevention would require other controls (e.g. code changes or runtime enforcement) configured to act on it
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-404, a class-level weakness, and none of its children carries one either.