CyberSecBulletin

INSTAR vulnerabilities

We track 2 vulnerabilities in INSTAR products across 2 products. 2 are rated high or critical, and none are known to be exploited. The most recent was published on August 13, 2025.

2vulnerabilities
1critical
1high
0exploited
8.7average CVSS score

Latest INSTAR vulnerabilities

  • 7.5 High severity

    2K+: Improper Resource Shutdown or Release

    CVE-2025-8761INSTAREPSS 11%

    A vulnerability has been found in INSTAR 2K+ and 4K 3.11.1 Build 1124. This vulnerability affects unknown code of the component Backend IPC Server. The manipulation leads to denial of service. The attack can be initiated remotely. The exploit has been disclose

  • 9.8 Critical severity

    2K+: Improper Restriction of Operations within the Bounds of a Memory Buffer

    CVE-2025-8760INSTAR

    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