How severe is CVE-2020-19003?

CVE-2020-19003 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-19003 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-19003?

CVE-2020-19003 affects Liftoffsoftware Gate One. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-19003?

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

When was CVE-2020-19003 published?

CVE-2020-19003 was published on 2021-10-06 and last updated on 2026-06-17.

CVE-2020-19003

CVE-2020-19003 is a medium-severity vulnerability in Liftoffsoftware Gate One with a CVSS 3.x base score of 5.3. 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-290.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-290
Affected product: Liftoffsoftware Gate One
Published: 2021-10-06
Last modified: 2026-06-17

Description

An issue in Gate One 1.2.0 allows attackers to bypass to the verification check done by the origins list and connect to Gate One instances used by hosts not on the origins list.

Frequently asked questions

What is CVE-2020-19003?: An issue in Gate One 1.2.0 allows attackers to bypass to the verification check done by the origins list and connect to Gate One instances used by hosts not on the origins list.
How severe is CVE-2020-19003?: CVE-2020-19003 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-19003 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-19003?: CVE-2020-19003 affects Liftoffsoftware Gate One. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-19003?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-19003 published?: CVE-2020-19003 was published on 2021-10-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:liftoffsoftware:gate_one:1.2.0:*:*:*:*:*:*:*

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