CVE-2022-20140
Published: 15 June 2022
Summary
CVE-2022-20140 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Google Android. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 11.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
In read_multi_rsp within gatt_sr.cc, an incorrect bounds check permits an out-of-bounds write. The flaw affects the Bluetooth GATT server component on Android 12 and Android 12L, carrying a CVSS 3.1 score of 9.8 and mapped to CWE-787.
An unauthenticated network attacker can trigger the condition remotely with no user interaction or additional privileges, resulting in escalation to higher execution privileges on the device. The June 2022 Android security bulletin lists the issue under Android ID A-227618988 and includes it in the corresponding monthly patch level.
EPSS for the CVE rose from low values to a peak of 0.0773 before receding to the current 0.0417, indicating a measurable but limited increase in observed exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-25400
Vulnerability details
In read_multi_rsp of gatt_sr.cc, 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:…
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Android-12 Android-12LAndroid ID: A-227618988
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.