CVE-2024-52510

Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty

4.2 MediumPublic exploitFix available

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: High
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.78%Up 0.7 points since Nov 16, 2024

What each source reports

CVE List Score used 4.2

Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty

Record: CVE-2024-52510
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2024-45924 4.2

Record: EUVD-2024-45924
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
Updated: 2026-11-03

NVD 4.2

Record: CVE-2024-52510
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-295
Updated: 2026-11-02

OSV 4.2

Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty

Record: CVE-2024-52510
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
Weakness: CWE-295
Updated: 2026-11-02

OSVDEBIAN-CVE-2024-52510 7.5

Record: DEBIAN-CVE-2024-52510
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2024-52510 4.2

Record: UBUNTU-CVE-2024-52510
CVSS 3.1: 4.2 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`nextcloud-desktop` Debian:12	All versions, plus listed versions 3.10.0-13.11.0-13.11.0-1.13.11.0-1.1~exp13.13.2-1 Show 29 moreShow less 3.13.2-23.14.1-13.15.0-13.15.2-13.15.2-23.15.3-13.16.0-13.16.2-13.16.4-13.16.6-13.16.6-23.16.6-33.16.7-13.16.7-1~deb13u13.7.3-13.7.3-1+deb12u13.7.3-1+deb12u23.9.0-133.0.0-133.0.0-233.0.2-133.0.2-233.0.2-333.0.7-135.0.0-14.0.1-14.0.1-24.0.1-34.0.6-1	None known
`nextcloud-desktop` Debian:13	before 3.15.0-1	3.15.0-1
`nextcloud-desktop` Debian:14	before 3.15.0-1	3.15.0-1
`nextcloud-desktop` Ubuntu:20.04:LTS	All versions, plus listed versions 2.5.3-12.6.0-12.6.1-12.6.1-22.6.2-12.6.2-1build1	None known
`nextcloud-desktop` Ubuntu:22.04:LTS	All versions, plus listed versions 3.2.3-0ubuntu13.3.5-13.3.5-1ubuntu13.4.2-13.4.2-1ubuntu1	None known
`nextcloud-desktop` Ubuntu:24.04:LTS	All versions, plus listed versions 3.9.0-13.10.0-13.11.0-13.11.0-1.1build33.11.0-1.1build4	None known
`nextcloud-desktop` Ubuntu:25.10	All versions, plus listed versions 3.16.0-13.16.2-13.16.4-13.16.6-13.16.6-3	None known
`nextcloud-desktop` Ubuntu:26.10	All versions, plus listed versions 4.0.6-133.0.2-133.0.7-1ubuntu1	None known
`nextcloud-desktop` Ubuntu:26.04:LTS	All versions, plus listed versions 3.16.6-33.16.7-14.0.1-24.0.1-2build14.0.6-1	None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	d-xuan/CVE-2024-52510	2024-07-04

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, products, published	EUVD
Nov 2, 2026	first indexed	CVE List, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-52510 is a medium vulnerability (CVSS 4.2) in Nextcloud Desktop, published November 15, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. Fixed in nextcloud-desktop 3.15.0-1.

References

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