Malicious Android application can crash the Nextcloud Android Client

published 2021-06-17 5 y ago modified 2026-09-08 2 mo ago also BIT-nextcloud-2021-32694 , EUVD-2021-19495 , GHSA-h2gm-m374-99vc

cvss: 4.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

Nextcloud Android app is the Android client for Nextcloud. In versions prior to 3.15.1, a malicious application on the same device is possible to crash the Nextcloud Android Client due to an uncaught exception. The vulnerability is patched in version 3.15.1.

Patch / fix

fixed in 2 links 1

bitnami nextcloud 3.15.1
nextcloud nextcloud 3.15.1

github.com/nextcloud/android#7919 pull request

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

hackerone.com https://hackerone.com/reports/859136 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.1	CVSS:3.1/AV:P/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:N/A:P
OSV	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
bitnami	nextcloud	<3.15.1	3.15.1

Affected products

nextcloud security-advisories

Classification

Weakness

CWE-248 Uncaught Exception

References

github.com /nextcloud/android/pull/7919
patch, third-party-advisory, advisory
hackerone.com /reports/859136
exploit, issue-tracking, third-party-advisory, advisory
github.com /nextcloud/security-advisories/security/advisories/GHSA-h2gm-m374-99vc
third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2021-32694
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary