How severe is CVE-2020-36248?

CVE-2020-36248 has a CVSS 3.x base score of 3.9, rated low severity. It is exploitable over physical access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-36248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36248?

CVE-2020-36248 affects Owncloud Owncloud Client. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36248?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-36248 published?

CVE-2020-36248 was published on 2021-02-19 and last updated on 2026-06-17.

CVE-2020-36248

CVE-2020-36248 is a low-severity vulnerability in Owncloud Owncloud Client with a CVSS 3.x base score of 3.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: Low (CVSS 3.x base score 3.9)
CVSS v2: 2.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Owncloud Owncloud Client
Published: 2021-02-19
Last modified: 2026-06-17

Description

The ownCloud application before 2.15 for Android allows attackers to use adb to include a PIN preferences value in a backup archive, and consequently bypass the PIN lock feature by restoring from this archive.

Frequently asked questions

What is CVE-2020-36248?: The ownCloud application before 2.15 for Android allows attackers to use adb to include a PIN preferences value in a backup archive, and consequently bypass the PIN lock feature by restoring from this archive.
How severe is CVE-2020-36248?: CVE-2020-36248 has a CVSS 3.x base score of 3.9, rated low severity. It is exploitable over physical access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-36248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36248?: CVE-2020-36248 affects Owncloud Owncloud Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36248?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36248 published?: CVE-2020-36248 was published on 2021-02-19 and last updated on 2026-06-17.

References

https://owncloud.com/security-advisories/bypassing-app-lock-pattern-passcode-fingerprint-lock-android-oc-sa-2020-003/

Affected products (1)

cpe:2.3:a:owncloud:owncloud_client:*:*:*:*:*:android:*:*

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