CVE-2021-41530 Denial of service in Forcepoint Next Generation Firewall

High 7.5 Published Updated

Attackers can exploit TCP reflected amplification in Forcepoint NGFW to cause denial of service if HTTP User Response is configured.

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-2021-41530?

CVE-2021-41530 is a high-severity denial of service vulnerability in Forcepoint Next Generation Firewall, published on 4 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Forcepoint NGFW Engine versions 6.5.11 and earlier, 6.8.6 and earlier, and 6.10.0 are vulnerable to TCP reflected amplification vulnerability, if HTTP User Response has been configured.

Which versions are affected by CVE-2021-41530?

It affects 1 product.

Products include Forcepoint Next Generation Firewall.

How do I fix CVE-2021-41530?

No fix has been published for CVE-2021-41530 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-2021-41530 being exploited?

There is no known exploitation of CVE-2021-41530 in the wild and no public exploit code.

Sources

Also known as GHSA-px9g-w8r8-j6gp.

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