How severe is CVE-2021-45092?

CVE-2021-45092 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-45092 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45092?

CVE-2021-45092 affects Cybelesoft Thinfinity Virtualui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45092?

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

When was CVE-2021-45092 published?

CVE-2021-45092 was published on 2021-12-16 and last updated on 2026-06-17.

CVE-2021-45092

CVE-2021-45092 is a critical-severity vulnerability in Cybelesoft Thinfinity Virtualui with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 40% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 40% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cybelesoft Thinfinity Virtualui
Published: 2021-12-16
Last modified: 2026-06-17

Description

Thinfinity VirtualUI before 3.0 has functionality in /lab.html reachable by default that could allow IFRAME injection via the vpath parameter.

Frequently asked questions

What is CVE-2021-45092?: Thinfinity VirtualUI before 3.0 has functionality in /lab.html reachable by default that could allow IFRAME injection via the vpath parameter.
How severe is CVE-2021-45092?: CVE-2021-45092 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-45092 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45092?: CVE-2021-45092 affects Cybelesoft Thinfinity Virtualui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45092?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-45092 published?: CVE-2021-45092 was published on 2021-12-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cybelesoft:thinfinity_virtualui:*:*:*:*:*:*:*:*

More vulnerabilities in Cybelesoft Thinfinity Virtualui

CVE-2021-46354 — High (CVSS 7.5): Thinfinity VirtualUI 2.1.28.0, 2.1.32.1 and 2.5.26.2, fixed in version 3.0 is affected by an information disclosure…
CVE-2019-16384 — Medium (CVSS 6.5): Cybele Thinfinity VirtualUI 2.5.17.2 allows ../ path traversal that can be used for data exfiltration. This enables…
CVE-2019-16385 — Medium (CVSS 6.1): Cybele Thinfinity VirtualUI 2.5.17.2 allows HTTP response splitting via the mimetype parameter within a PDF viewer…
CVE-2021-44554 — Medium (CVSS 5.3): Thinfinity VirtualUI before 3.0 allows a malicious actor to enumerate users registered in the OS (Windows) through the…
CVE-2021-44848 — Medium (CVSS 5.3): In Cibele Thinfinity VirtualUI before 3.0, /changePassword returns different responses for invalid authentication…

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