CVE-2023-35173

FAUCET Score

CVE-2023-35173 is a vulnerability in the Nextcloud End-to-end encryption app, allowing an attacker to render previously dropped files inaccessible by providing an invalid metadata file. This medium-severity vulnerability (CVSS 6.5) has a network attack vector and low attack complexity, leading to high availability impact. 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
		>= 1.12.0, < 1.12.4CPE matchmatch criteria	cpe:2.3:a:nextcloud:end-to-end_encryption::::::::

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

0.49%

Probability of exploitation in next 30 days

EPSS Percentile

39.5%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

This CVE's current EPSS score of 0.0049 is in the 42nd percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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/end_to_end_encryption/pull/435

Patch

github.com / nextcloud/security-advisories/security/advisories/GHSA-x7c7-v5r3-mg37

Vendor Advisory

hackerone.com / reports/1914115

Third Party Advisory