CVE-2025-8760 (GCVE-0-2025-8760)

Vulnerability from cvelistv5 – Published: 2025-08-13 06:14 – Updated: 2025-08-13 13:31
VLAI
Title
INSTAR 2K+/4K fcgi_server base64_decode buffer overflow
Summary
A vulnerability was identified in INSTAR 2K+ and 4K 3.11.1 Build 1124. This affects the function base64_decode of the component fcgi_server. The manipulation of the argument Authorization leads to buffer overflow. It is possible to initiate the attack remotely.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:W/RC:R
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:W/RC:R
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-13 13:30 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3880 records in the last 180 days details
References
URL Tags
https://vuldb.com/?id.319863 vdb-entrytechnical-description
https://vuldb.com/?ctiid.319863 signaturepermissions-required
https://modzero.com/static/MZ-25-03_modzero_INSTAR.pdf related
Impacted products
Vendor Product Version CPE status
INSTAR 2K+ Affected: 3.11.1 Build 1124
guessed Create a notification for this product.
INSTAR 4K Affected: 3.11.1 Build 1124
guessed Create a notification for this product.
Credits
Michael Imfeld (modzero AG)
Show details on NVD website
To clipboard 

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