Security readout for executives and security teams
Plain-English summary
This is a MediaTek Android chipset vulnerability in the radio interface layer. A local attacker already running with high privileges could trigger memory corruption and potentially gain System-level privileges. It does not require user interaction, but it is not a remote, drive-by issue based on the provided evidence.
Executive priority
Treat this as a moderate mobile platform hardening issue. It is not evidenced as remotely exploitable or actively exploited, but it can strengthen an attacker’s position after local privileged access. Prioritize patch verification for managed Android fleets using MediaTek hardware.
Technical view
CVE-2023-20615 is a CWE-787 out-of-bounds write in MediaTek ril caused by a missing bounds check. The CVSS 3.1 vector is AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, scoring 6.7. MediaTek lists affected chipsets on Android 11.0, 12.0, and 13.0 with Patch ID ALPS07629572.
Likely exposure
Exposure is most likely on Android devices using the listed MediaTek chipsets and running Android 11, 12, or 13. The source bundle does not provide CPEs, device model mappings, or OEM firmware build details, so exposure must be confirmed through hardware inventory and vendor firmware advisories.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation is local, requires high privileges, and needs no user interaction. Business risk is mainly post-compromise privilege escalation on affected mobile or embedded Android devices.
Researcher notes
Evidence is limited to the CVE record and MediaTek bulletin metadata. No public exploit details, CPEs, OEM model mappings, or code-level root cause details are included in the bundle. Validate through vendor firmware lineage rather than assuming all MediaTek Android devices are affected.
Mitigation direction
- Check MediaTek and OEM guidance for firmware containing Patch ID ALPS07629572.
- Update affected Android devices to vendor firmware that includes the February 2023 MediaTek fix.
- Prioritize managed devices with listed MediaTek chipsets on Android 11, 12, or 13.
- Remove or isolate unsupported devices where OEM fixes cannot be obtained.
Validation and detection
- Inventory Android devices for the affected MediaTek chipset list.
- Confirm OS versions are Android 11.0, 12.0, or 13.0 where applicable.
- Verify OEM firmware release notes reference the relevant MediaTek February 2023 bulletin or patch.
- Track exceptions where chipset or firmware status cannot be confirmed.
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-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCVE-2023-20615 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.