CVE-2023-40090

Name: CVE-2023-40090
Creator: NVD / NIST
Published: 2023-12-04T23:15:24.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2023-40090 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In BTM_BleVerifySignature of btm_ble.cc, there is a possible way to bypass signature validation due to side channel information disclosure. This could lead to remote escalation of privilege with no additional execution privileges needed. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

In BTM_BleVerifySignature of btm_ble.cc, there is a possible way to bypass signature validation due to side channel information disclosure. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.54%

41.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-203

Affected Software

Vendor	Product	Versions
Google	Android	11.0
Google	Android	12.0
Google	Android	12.1
Google	Android	13.0
Google	Android	14.0

References

https://android.googlesource.com/platform/packages/modules/Bluetooth/+/495417bd068c35de0729d9a332639bd0699153ffMailing List, Patch
https://source.android.com/security/bulletin/2023-12-01Patch, Third Party Advisory
https://android.googlesource.com/platform/packages/modules/Bluetooth/+/495417bd068c35de0729d9a332639bd0699153ffMailing List, Patch
https://source.android.com/security/bulletin/2023-12-01Patch, Third Party Advisory

Timeline

Published: Dec 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-40090?

How severe is CVE-2023-40090?

CVE-2023-40090 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2023-40090?

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-2023-40090?

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

Scan your code now

Source: NVD / NIST