Security readout for executives and security teams
Plain-English summary
CVE-2021-0510 is an Android flaw that could let someone who already has local code execution gain higher privileges. It affects Android 8.1, 9, 10, and 11. The source bundle does not provide a CVSS score or evidence of active exploitation.
Executive priority
Treat this as a fleet hygiene and endpoint hardening issue. It is not documented as actively exploited here, but local privilege escalation can increase the impact of malware or compromised apps on outdated Android devices.
Technical view
The issue is in decrypt_1_2 in CryptoPlugin.cpp. An integer overflow may lead to an out-of-bounds write, creating a local escalation-of-privilege condition. The CVE states no additional execution privileges or user interaction are required.
Likely exposure
Organizations may be exposed where Android 8.1, 9, 10, or 11 devices remain unpatched or unsupported. The bundle does not identify specific OEM builds, chipset dependencies, or enterprise management products.
Exploitation context
The CVE describes local privilege escalation, not remote exploitation. KEV is false, and the provided sources do not state active exploitation, public exploit availability, or exploitation in the wild.
Researcher notes
Evidence is limited to the CVE description and Android bulletin reference. The bundle does not include CVSS, CWE mapping, affected component packaging details, exploit prerequisites beyond local context, or patch verification specifics.
Mitigation direction
- Review the Android June 2021 Security Bulletin for vendor guidance.
- Apply applicable Android or OEM security updates to affected devices.
- Prioritize managed devices running Android 8.1 through 11.
- Retire or isolate devices that cannot receive relevant security updates.
Validation and detection
- Inventory Android devices by OS version and security patch level.
- Confirm whether affected devices received the June 2021 Android security fixes or later OEM updates.
- Check mobile device management records for unsupported Android 8.1 through 11 devices.
- Track exceptions for devices that cannot be updated promptly.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-0510 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2021-06-01CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.