CVE-2026-20801 Information disclosure in NxWitness VMS and Hanwha VMS Integrations
Unprivileged local network users can view live video streams due to cleartext transmission in Gallagher VMS integrations.
- 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-2026-20801?
CVE-2026-20801 is a medium-severity vulnerability in Gallagher NxWitness VMS and Hanwha VMS Integrations, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cleartext Transmission of Sensitive Information (CWE-319) in a component used in the Gallagher Hanwha VMS and Gallagher NxWitness VMS integrations allows unprivileged users with local network access to view live video streams.
This issue affects all versions of Gallagher NxWitness VMS integration prior to 9.10.017 and Gallagher Hanwha VMS integration prior to 9.10.025.
Weakness: CWE-319
Which versions are affected by CVE-2026-20801?
It affects 2 products.
Products include Gallagher Hanwha Vms Integration, Gallagher Nx Witness Vms Integration.
How do I fix CVE-2026-20801?
No fix has been published for CVE-2026-20801 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20801 being exploited?
There is no known exploitation of CVE-2026-20801 in the wild and no public exploit code.
Sources
Also known as GHSA-799x-hcrc-c72v.