CVE-2019-5451 — Bypass lock protection in the Nextcloud Android app prior to version 3.6.1 allows accessing the files when repeatedly opening and closing the app in a very short time

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MEDIUM

Bypass lock protection in the Nextcloud Android app prior to version 3.6.1 allows accessing the files when repeatedly opening and closing the app in a very short time

Published Jul 30, 2019

4.6

MEDIUM

CVSS 3.1

EPSS 0.39%

Description

Bypass lock protection in the Nextcloud Android app prior to version 3.6.1 allows accessing the files when repeatedly opening and closing the app in a very short time.

Affected products

Vendor n/a Product Com.nextcloud.client Default
n/a
- Version
  3.6.1
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Com.nextcloud.client

n/a

Version	Status	Constraints
3.6.1	affected	-

Remediation

No remediation recorded yet.

Metrics

0.39% 0.00385

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00385

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.39% (0.00385)	30.10th	v5 (v2026.06.15)
Sep 20, 2026	0.39% (0.00385)	32.39th	v5 (v2026.06.15)
Jul 20, 2024	0.07% (0.00069)	30.57th	v3 (v2023.03.01)
Jun 12, 2024	0.07% (0.00069)	30.02th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00069)	28.01th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Jan 6, 2022	1.84% (0.01840)	47.32th	v1
Jan 5, 2022	0.42% (0.00416)	26.65th	v5 (v2026.06.15)
Apr 14, 2021	0.42% (0.00416)	0.00th	v1