CVE-2021-0517

Name: CVE-2021-0517
Creator: NVD / NIST
Published: 2021-06-21T17:15:08.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2021-0517 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In updateCapabilities of ConnectivityService.java, there is a possible incorrect network state determination due to a logic error in the code. This could lead to biasing of networking tasks to occur on non-VPN networks, which could lead to remote information disclosure, with no additional execution privileges needed. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

In updateCapabilities of ConnectivityService.java, there is a possible incorrect network state determination due to a logic error in the code. This could lead to biasing of networking tasks to occur on non-VPN networks, which could lead to remote information disclosure, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-179053823

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.80%

52.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-670

Affected Software

Vendor	Product	Versions
Google	Android	11.0

References

https://source.android.com/security/bulletin/2021-06-01Patch, Vendor Advisory
https://source.android.com/security/bulletin/2021-06-01Patch, Vendor Advisory

Timeline

Published: Jun 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-0517?

How severe is CVE-2021-0517?

CVE-2021-0517 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2021-0517?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-0517?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST