How severe is CVE-2024-52509?

CVE-2024-52509 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2024-52509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-52509?

CVE-2024-52509 affects Nextcloud Mail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-52509?

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

Does CVE-2024-52509 have an EU (EUVD) identifier?

Yes. CVE-2024-52509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-45923.

When was CVE-2024-52509 published?

CVE-2024-52509 was published on 2024-11-15 and last updated on 2026-06-17.

CVE-2024-52509

CVE-2024-52509 is a low-severity vulnerability in Nextcloud Mail with a CVSS 3.x base score of 3.5. 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-284.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-45923
Weakness: CWE-284
Affected product: Nextcloud Mail
Published: 2024-11-15
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2024-52509?: 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.
How severe is CVE-2024-52509?: CVE-2024-52509 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2024-52509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-52509?: CVE-2024-52509 affects Nextcloud Mail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-52509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-52509 have an EU (EUVD) identifier?: Yes. CVE-2024-52509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-45923.
When was CVE-2024-52509 published?: CVE-2024-52509 was published on 2024-11-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nextcloud:mail:*:*:*:*:*:nextcloud:*:*

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