CVE-2025-67158
Published: 02 January 2026
Summary
CVE-2025-67158 is a high-severity Improper Authentication (CWE-287) vulnerability in Revotech I6032W-Fhw Firmware. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 22.1th 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 are NIST 800-53 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).
Deeper analysis
CVE-2025-67158, published on 2026-01-02, is an authentication bypass vulnerability (CWE-287) affecting the /cgi-bin/jvsweb.cgi endpoint in Revotech I6032W-FHW devices running versions v1.0.0014 through 20210517. Rated with a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), the flaw enables attackers to access sensitive information and escalate privileges by sending a crafted HTTP request.
Unauthenticated attackers with network access to the device can exploit this vulnerability remotely with low attack complexity and no user interaction required. Exploitation results in high-impact confidentiality loss, allowing unauthorized access to sensitive data and subsequent privilege escalation on the targeted system.
Mitigation guidance and additional details are available in the vendor resources at http://revotech.com and the GitHub repository https://github.com/Remenis/CVE-2025-67158.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-0042
Vulnerability details
An authentication bypass in the /cgi-bin/jvsweb.cgi endpoint of Revotech I6032W-FHW v1.0.0014 - 20210517 allows attackers to access sensitive information and escalate privileges via a crafted HTTP request.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Auth bypass in public-facing CGI endpoint directly enables remote exploitation for initial access (T1190) and subsequent privilege escalation (T1068).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-14 explicitly identifies and restricts actions permitted without identification or authentication, preventing unauthorized access to sensitive CGI endpoints like /cgi-bin/jvsweb.cgi via crafted requests.
AC-3 enforces approved authorizations for logical access, ensuring authentication requirements block bypass vulnerabilities in device web endpoints.
AC-6 enforces least privilege to limit the scope of privilege escalation resulting from successful authentication bypass exploitation.