How severe is CVE-2021-35970?

CVE-2021-35970 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-35970 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35970?

CVE-2021-35970 affects Voxmedia Coral Talk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-35970?

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-2021-35970 published?

CVE-2021-35970 was published on 2021-06-30 and last updated on 2026-06-17.

CVE-2021-35970

CVE-2021-35970 is a high-severity vulnerability in Voxmedia Coral Talk with a CVSS 3.x base score of 7.5. 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-697.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-697
Affected product: Voxmedia Coral Talk
Published: 2021-06-30
Last modified: 2026-06-17

Description

Talk 4 in Coral before 4.12.1 allows remote attackers to discover e-mail addresses and other sensitive information via GraphQL because permission checks use an incorrect data type.

Frequently asked questions

What is CVE-2021-35970?: Talk 4 in Coral before 4.12.1 allows remote attackers to discover e-mail addresses and other sensitive information via GraphQL because permission checks use an incorrect data type.
How severe is CVE-2021-35970?: CVE-2021-35970 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-35970 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35970?: CVE-2021-35970 affects Voxmedia Coral Talk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-35970?: 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-2021-35970 published?: CVE-2021-35970 was published on 2021-06-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:voxmedia:coral_talk:*:*:*:*:*:*:*:*

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