How severe is CVE-2026-20801?

CVE-2026-20801 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-20801 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-20801?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-20801 have an EU (EUVD) identifier?

Yes. CVE-2026-20801 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9276.

When was CVE-2026-20801 published?

CVE-2026-20801 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-20801

CVE-2026-20801 is a medium-severity vulnerability with a CVSS 3.x base score of 5.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: Medium (CVSS 3.x base score 5.6)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9276
Weakness: CWE-319
Published: 2026-03-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-20801?: 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.
How severe is CVE-2026-20801?: CVE-2026-20801 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-20801 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-20801?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-20801 have an EU (EUVD) identifier?: Yes. CVE-2026-20801 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9276.
When was CVE-2026-20801 published?: CVE-2026-20801 was published on 2026-03-03 and last updated on 2026-06-17.

References

https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-20801

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