How severe is CVE-2020-13872?

CVE-2020-13872 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-13872 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13872?

CVE-2020-13872 affects Royalapps Royal Ts. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13872?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-13872 published?

CVE-2020-13872 was published on 2020-06-09 and last updated on 2026-06-17.

CVE-2020-13872

CVE-2020-13872 is a high-severity vulnerability in Royalapps Royal Ts with a CVSS 3.x base score of 8.8. 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-307.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 3.3
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Royalapps Royal Ts
Published: 2020-06-09
Last modified: 2026-06-17

Description

Royal TS before 5 has a 0.0.0.0 listener, which makes it easier for attackers to bypass tunnel authentication via a brute-force approach.

Frequently asked questions

What is CVE-2020-13872?: Royal TS before 5 has a 0.0.0.0 listener, which makes it easier for attackers to bypass tunnel authentication via a brute-force approach.
How severe is CVE-2020-13872?: CVE-2020-13872 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-13872 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13872?: CVE-2020-13872 affects Royalapps Royal Ts. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13872?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-13872 published?: CVE-2020-13872 was published on 2020-06-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:royalapps:royal_ts:*:*:*:*:*:*:*:*

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