Privilege escalation in Google Android
CVE-2023-35671
In onHostEmulationData of HostEmulationManager.java, there is a possible way for a general purpose NFC reader to read the full card number and expiry details when the device is in locked screen mode due to a logic error in the code. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (14.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Google Android — versions 12, 11.0, 11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- android.googlesource.com/platform/packages/apps/Nfc/+/745632835f3d97513a9c2a96e… (Patch, Issue Tracking)
- source.android.com/security/bulletin/2023-09-01 (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-35671?
- CVE-2023-35671 is a medium-severity vulnerability in Google Android, classified under Improper Privilege Management. CVSS score: 5.5/10. Published 2023-09-11.
- How severe is CVE-2023-35671?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-35671 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.