Security readout for executives and security teams
Plain-English summary
CVE-2023-20612 is a MediaTek Android radio interface layer issue. A missing bounds check may allow an out-of-bounds write. The impact is potentially serious on affected devices, but the known attack path is local, requires high privileges, and needs no user interaction.
Executive priority
Handle through mobile fleet patch management, with priority for managed devices that run sensitive workloads. This is not evidenced as internet-exploitable or actively exploited, but successful abuse could affect confidentiality, integrity, and availability on an already privileged local device.
Technical view
The flaw is in MediaTek ril and is classified as improper input validation. The CVSS 3.1 vector is AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, score 6.7. Affected platforms are Android 11.0, 12.0, and 13.0 on listed MediaTek chipsets. Patch ID is ALPS07629571.
Likely exposure
Exposure is most likely in Android phones, tablets, or embedded Android devices using the listed MediaTek chipsets and Android 11 through 13. The bundle provides no CPEs, so asset matching must use device model, chipset, Android version, and OEM firmware data.
Exploitation context
The source bundle does not show CISA KEV listing or public exploitation evidence. Exploitation is described as local, low complexity, no user interaction, and requiring high privileges. Treat it as a post-compromise or privileged-local risk unless vendor evidence says otherwise.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, affected MediaTek chipsets, Android versions, and MediaTek bulletin reference. The phrase about System execution privileges should be interpreted alongside PR:H; do not assume remote access or user-assisted exploitation from this bundle.
Mitigation direction
- Review MediaTek February 2023 bulletin for Patch ID ALPS07629571.
- Apply OEM firmware updates that include the MediaTek fix.
- Prioritize affected Android 11, 12, and 13 MediaTek devices.
- Check vendor guidance if no update is available for a device model.
- Limit privileged local access on affected managed devices until patched.
Validation and detection
- Inventory Android devices using the listed MediaTek chipsets.
- Confirm Android major version is 11, 12, or 13.
- Verify OEM firmware includes ALPS07629571 or equivalent vendor fix.
- Check device fleet records for post-February 2023 security updates.
- Document unsupported affected devices as residual risk.
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-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2023-20612 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
- Medium
- CVSS
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/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:H/UI:N/S:U/C:H/I:H/A:H0.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://corp.mediatek.com/product-security-bulletin/February-2023CVE 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 Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.