How severe is CVE-2021-32676?

CVE-2021-32676 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-32676 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32676?

CVE-2021-32676 affects Nextcloud Talk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32676?

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

When was CVE-2021-32676 published?

CVE-2021-32676 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2021-32676

CVE-2021-32676 is a medium-severity vulnerability in Nextcloud Talk with a CVSS 3.x base score of 6.5. 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-384.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-384
Affected product: Nextcloud Talk
Published: 2021-06-16
Last modified: 2026-06-17

Description

Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist.

Frequently asked questions

What is CVE-2021-32676?: Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist.
How severe is CVE-2021-32676?: CVE-2021-32676 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-32676 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32676?: CVE-2021-32676 affects Nextcloud Talk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32676?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-32676 published?: CVE-2021-32676 was published on 2021-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nextcloud:talk:*:*:*:*:*:*:*:*

More vulnerabilities in Nextcloud Talk

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CVE-2019-15619 — Medium (CVSS 4.8): Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk…

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