Is CVE-2024-52509 in the CISA KEV catalog?

No. CVE-2024-52509 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-52509?

CVE-2024-52509 has a CVSS v3 base score of 3.5 (LOW).

What is the EPSS score for CVE-2024-52509?

CVE-2024-52509 has an EPSS score of 0.50% (39th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-52509?

Upgrade mail to 3.7.2 or later.

CVE & CISA-KEV Catalog

CVE-2024-52509

LOW

3.5

CVSS v3

NVD

Description

Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. The Nextcloud mail app incorrectly allowed attaching shared files without download permissions as attachments. This allowed users to send them the files to themselves and then downloading it from their mail clients. It is recommended that the Nextcloud Mail is upgraded to 2.2.10, 3.6.2 or 3.7.2.

CWE-284Improper Access Control

How to fix

Remediation Available

mailNVD

Affected:>= 3.7.0, < 3.7.2Fixed in:3.7.2CVE-2024-52509derived 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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.50%probability of exploitation in 30 days

39thpercentile

Low risk: more likely to be exploited than 39% of all known CVEs.

References

Patch3

Issue Tracking1

hackerone.com

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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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 2025-09-04.