CVE-2021-39623
Last modified
CVE-2021-39623 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In doRead of SimpleDecodingSource.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. EPSS estimates a 2.04% chance of exploitation in the next 30 days.
Description
In doRead of SimpleDecodingSource.cpp, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-9Android ID: A-194105348
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Android | 9.0 | |
| Android | 10.0 | |
| Android | 11.0 | |
| Android | 12.0 |
References
- https://source.android.com/security/bulletin/2022-01-01Vendor Advisory
- https://source.android.com/security/bulletin/2022-01-01Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39623?
How severe is CVE-2021-39623?
How do I fix CVE-2021-39623?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-39618In multiple methods of EuiccNotificationManager.java, there …7.8
- CVE-2021-39619In updatePackageMappingsData of UsageStatsService.java, ther…7.8
- CVE-2021-3962A flaw was found in ImageMagick where it did not properly sa…7.8
- CVE-2021-39620In ipcSetDataReference of Parcel.cpp, there is a possible wa…7.8
- CVE-2021-39621In sendLegacyVoicemailNotification of LegacyModeSmsHandler.j…7.8
- CVE-2021-39622In GBoard, there is a possible way to bypass Factory Reset P…7.8
- CVE-2021-39624In PackageManager, there is a possible permanent denial of s…5.5
- CVE-2021-39625In showCarrierAppInstallationNotification of EuiccNotificati…7.3
- CVE-2021-39626In onAttach of ConnectedDeviceDashboardFragment.java, there …7.8
- CVE-2021-39627In sendLegacyVoicemailNotification of LegacyModeSmsHandler.j…7.8
- CVE-2021-39628In StatusBar.java, there is a possible disclosure of notific…3.3
- CVE-2021-39629In phTmlNfc_Init and phTmlNfc_CleanUp of phTmlNfc.cc, there …7
Are you affected by CVE-2021-39623?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
