Is CVE-2023-45150 in the CISA KEV catalog?

No. CVE-2023-45150 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-45150?

CVE-2023-45150 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2023-45150?

CVE-2023-45150 has an EPSS score of 0.39% (30th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-45150?

Upgrade calendar to 4.4.4 or later.

CVE & CISA-KEV Catalog

CVE-2023-45150

MEDIUM

4.3

CVSS v3

NVD

Description

Nextcloud calendar is a calendar app for the Nextcloud server platform. Due to missing precondition checks the server was trying to validate strings of any length as email addresses even when megabytes of data were provided, eventually making the server busy and unresponsive. It is recommended that the Nextcloud Calendar app is upgraded to 4.4.4. The only workaround for users unable to upgrade is to disable the calendar app.

CWE-400Resource Exhaustion CWE-354

How to fix

Remediation Available

calendarNVD

Affected:>= 1.0, < 4.4.4Fixed in:4.4.4CVE-2023-45150derived 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

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Patch1

github.com

Exploit1

hackerone.com

Vendor Advisory1

github.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.