CVE-2023-21115

Name: CVE-2023-21115
Creator: NVD / NIST
Published: 2023-06-15T19:15:09.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.10%

Last modified Jun 17, 2026

CVE-2023-21115 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In btm_sec_encrypt_change of btm_sec.cc, there is a possible way to downgrade the link key type due to improperly used crypto. This could lead to paired device escalation of privilege with no additional execution privileges needed. EPSS estimates a 0.10% chance of exploitation in the next 30 days.

Description

In btm_sec_encrypt_change of btm_sec.cc, there is a possible way to downgrade the link key type due to improperly used crypto. This could lead to paired device escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12LAndroid ID: A-258834033

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.10%

1.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-327

Affected Software

Vendor	Product	Versions
Google	Android	11.0
Google	Android	12.0
Google	Android	12.1

References

https://source.android.com/security/bulletin/2023-06-01Vendor Advisory
https://source.android.com/security/bulletin/2023-06-01Vendor Advisory

Timeline

Published: Jun 15, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21115?

How severe is CVE-2023-21115?

CVE-2023-21115 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21115?

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-2023-21115?

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

Scan your code now

Source: NVD / NIST