CVE-2023-28644

FAUCET Score

CVE-2023-28644 is a denial-of-service vulnerability affecting Nextcloud Server versions prior to 25.0.3, stemming from an inefficient data fetch operation. With a CVSS score of 7.5 (High), this vulnerability can be exploited remotely with low complexity, potentially leading to a denial of service without requiring user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 25.0.0, < 25.0.3CPE matchmatch criteria	cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

2.1

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.62%

Probability of exploitation in next 30 days

EPSS Percentile

46.3%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0062 is in the 23rd percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference

View patch

References

github.com / nextcloud/security-advisories/security/advisories/GHSA-9wmj-gp8v-477j

Vendor Advisory

github.com / nextcloud/server/pull/36016

Issue TrackingPatch