CVE-2025-8761 INSTAR 2K+/4K Backend IPC Server denial of service
Remote attackers can cause a denial of service in INSTAR 2K+ and 4K cameras via the Backend IPC Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-8761?
CVE-2025-8761 is a high-severity denial of service vulnerability in INSTAR 2K+, published on 13 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-404
Which versions are affected by CVE-2025-8761?
How do I fix CVE-2025-8761?
No fix has been published for CVE-2025-8761 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-8761 being exploited?
There is no known exploitation of CVE-2025-8761 in the wild and no public exploit code.
Sources
Also known as GHSA-c2jm-6qr2-hwhx.