How severe is CVE-2021-21957?

CVE-2021-21957 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21957 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21957?

CVE-2021-21957 affects Dreamreport Remote Connector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21957?

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-2021-21957 published?

CVE-2021-21957 was published on 2021-12-08 and last updated on 2026-06-17.

CVE-2021-21957

CVE-2021-21957 is a high-severity vulnerability in Dreamreport Remote Connector with a CVSS 3.x base score of 7.3. 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-276.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 6.8
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Dreamreport Remote Connector
Published: 2021-12-08
Last modified: 2026-06-17

Description

A privilege escalation vulnerability exists in the Remote Server functionality of Dream Report ODS Remote Connector 20.2.16900.0. A specially-crafted command injection can lead to elevated capabilities. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2021-21957?: A privilege escalation vulnerability exists in the Remote Server functionality of Dream Report ODS Remote Connector 20.2.16900.0. A specially-crafted command injection can lead to elevated capabilities. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2021-21957?: CVE-2021-21957 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21957 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21957?: CVE-2021-21957 affects Dreamreport Remote Connector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21957?: 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-2021-21957 published?: CVE-2021-21957 was published on 2021-12-08 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1384

Affected products (1)

cpe:2.3:a:dreamreport:remote_connector:20.2.16900.0:*:*:*:*:*:*:*

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