CVE-2023-40090 json
In BTM_BleVerifySignature of btm_ble.cc, there is a possible way to bypass signature validation due to side channel information disclosure.
published 2023-12-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44697
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Google Android
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
-
android.googlesource.com
/platform/packages/modules/Bluetooth/+/495417bd068c35de0729d9a332639bd0699153ff
mailing-list, patch
-
source.android.com
/security/bulletin/2023-12-01
patch, third-party-advisory
Sources
- CVE List CVE-2023-40090
- NVD CVE-2023-40090
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.