How severe is CVE-2021-47771?

CVE-2021-47771 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-47771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47771?

CVE-2021-47771 affects Cinspiration Rdp Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-47771?

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

Does CVE-2021-47771 have an EU (EUVD) identifier?

Yes. CVE-2021-47771 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2766.

When was CVE-2021-47771 published?

CVE-2021-47771 was published on 2026-01-15 and last updated on 2026-06-17.

CVE-2021-47771

CVE-2021-47771 is a medium-severity vulnerability in Cinspiration Rdp Manager with a CVSS 3.x base score of 5.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 6.8
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2766
Weakness: CWE-770
Affected product: Cinspiration Rdp Manager
Published: 2026-01-15
Last modified: 2026-06-17

Description

RDP Manager 4.9.9.3 contains a denial of service vulnerability in connection input fields that allows local attackers to crash the application. Attackers can add oversized entries in Verbindungsname and Server fields to permanently freeze and crash the software, potentially requiring full reinstallation.

Frequently asked questions

What is CVE-2021-47771?: RDP Manager 4.9.9.3 contains a denial of service vulnerability in connection input fields that allows local attackers to crash the application. Attackers can add oversized entries in Verbindungsname and Server fields to permanently freeze and crash the software, potentially requiring full reinstallation.
How severe is CVE-2021-47771?: CVE-2021-47771 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-47771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47771?: CVE-2021-47771 affects Cinspiration Rdp Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-47771?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2021-47771 have an EU (EUVD) identifier?: Yes. CVE-2021-47771 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2766.
When was CVE-2021-47771 published?: CVE-2021-47771 was published on 2026-01-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cinspiration:rdp_manager:4.9.9.3:*:*:*:*:*:*:*

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