INSTAR 2K+/4K fcgi_server base64_decode buffer overflow_CVE-2025-8760

9.3 / 10

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

Description

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.

Basic Information

ID CVE-2025-8760

Source VulDB

Published Aug 13, 2025 at 06:14

Affected Product

Vendor INSTAR

Product 2K+

Version 3.11.1 Build 1124

Affected Versions INSTAR 2K+ 3.11.1 Build 1124
INSTAR 4K 3.11.1 Build 1124

CWE Classification

CWE-120 CWE-119

References

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    "published": "2025-08-13T06:14:02.783Z",
    "modified": "2025-08-13T06:14:02.783Z",
    "type": "cve",
    "title": "INSTAR 2K+/4K fcgi_server base64_decode buffer overflow",
    "source": "VulDB",
    "references": "https://vuldb.com/?id.319863\nhttps://vuldb.com/?ctiid.319863\nhttps://modzero.com/static/MZ-25-03_modzero_INSTAR.pdf",
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