SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityDeferred

CVE-2025-8761

A vulnerability has been found in INSTAR 2K+ and 4K 3.11.1 Build 1124.

HIGH 7.7EPSS 7.27%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (7.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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 disclosed to the public and may be used.

CVSS 4.0
7.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
7.27% probability · 94th percentile
CISA KEV
Not listed
Weakness
CWE-404
Source
cna@vuldb.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.