Is CVE-2021-32689 in the CISA KEV catalog?

No. CVE-2021-32689 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-32689?

CVE-2021-32689 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2021-32689?

CVE-2021-32689 has an EPSS score of 1.00% (58th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-32689?

Upgrade talk to 11.2.2 or later.

CVE & CISA-KEV Catalog

CVE-2021-32689

HIGH

8.1

CVSS v3

NVD

Description

Nextcloud Talk is a fully on-premises audio/video and chat communication service. In versions prior to 11.2.2, if a user was able to reuse an earlier used username, they could get access to any chat message sent to the previous user with this username. The issue was patched in versions 11.2.2 and 11.3.0. As a workaround, don't allow users to choose usernames themselves. This is the default behaviour of Nextcloud, but some user providers may allow doing so.

CWE-200Information Exposure CWE-708

How to fix

Remediation Available

talkNVD

Affected:< 11.2.2Fixed in:11.2.2CVE-2021-32689derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

1.00%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory3

Other references1

hackerone.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.