Security readout for executives and security teams
Plain-English summary
CVE-2023-20943 is a high-severity Android flaw where a local app or user-level process could abuse path traversal during application data clearing to remove system files. That can raise privileges and compromise confidentiality, integrity, and availability on affected Android versions.
Executive priority
Treat this as a patch-compliance priority for Android fleets, especially BYOD or field devices. It is not shown as actively exploited here, but the privilege-escalation impact is broad enough to justify timely remediation.
Technical view
The issue is CWE-22 path traversal in ActivityManagerService.java clearApplicationUserData. Android lists Android 10, 11, 12, 12L, and 13 as affected. CVSS 3.1 is 7.8 with local access, low complexity, low privileges, no user interaction, and high CIA impact.
Likely exposure
Exposure is most likely on Android devices running affected versions without the relevant February 2023 Android security bulletin fixes or OEM equivalent. Actual exposure depends on device model, OEM patch delivery, and Android security patch level.
Exploitation context
Sources describe local escalation of privilege requiring User execution privileges and no user interaction. The bundle does not show CISA KEV listing, public exploitation, remote exploitation, or weaponized exploit availability.
Researcher notes
Focus validation on patch state, affected OS versions, and OEM backport behavior. The public bundle identifies the vulnerable component and impact class but does not provide commit details, exploit primitives, or model-specific remediation status.
Mitigation direction
- Apply the relevant February 2023 Android security update or later OEM security patch.
- Prioritize managed Android 10 through 13 devices and high-privilege user populations.
- Check OEM and carrier advisories for model-specific patch availability.
- Retire or isolate unsupported devices that cannot receive security updates.
- Restrict untrusted app installation through MDM or enterprise policy.
Validation and detection
- Inventory Android OS versions and security patch levels across managed devices.
- Confirm affected devices have received the relevant February 2023 or later security patch.
- Review MDM compliance reports for outdated Android 10 through 13 devices.
- Check OEM bulletins where patch level alone is ambiguous.
- Verify sideloading and unknown-source app controls are enforced.
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.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-20943 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2023-02-01CVE reference
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.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.