How severe is CVE-2021-31584?

CVE-2021-31584 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-31584 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31584?

CVE-2021-31584 affects Sipwise Next Generation Communication Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-31584?

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-2021-31584 published?

CVE-2021-31584 was published on 2021-04-23 and last updated on 2026-06-17.

CVE-2021-31584

CVE-2021-31584 is a high-severity vulnerability in Sipwise Next Generation Communication Platform 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Sipwise Next Generation Communication Platform
Published: 2021-04-23
Last modified: 2026-06-17

Description

Sipwise C5 NGCP www_csc version 3.6.4 up to and including platform NGCP CE mr3.8.13 allows call/click2dial CSRF attacks for actions with administrative privileges.

Frequently asked questions

What is CVE-2021-31584?: Sipwise C5 NGCP www_csc version 3.6.4 up to and including platform NGCP CE mr3.8.13 allows call/click2dial CSRF attacks for actions with administrative privileges.
How severe is CVE-2021-31584?: CVE-2021-31584 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-31584 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31584?: CVE-2021-31584 affects Sipwise Next Generation Communication Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-31584?: 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-2021-31584 published?: CVE-2021-31584 was published on 2021-04-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sipwise:next_generation_communication_platform:3.6.4:*:*:*:ce:*:*:*

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