Security readout for executives and security teams
Plain-English summary
CVE-2023-20611 is a MediaTek GPU driver flaw affecting many MediaTek chipsets on Android 12 and 13. It can let a local attacker with high existing privileges gain broader system-level control. It does not require user interaction, but the attack conditions are not trivial.
Executive priority
Treat this as a moderate-priority mobile fleet hygiene issue. It is not described as remotely exploitable or actively exploited, but successful abuse could provide deep system impact on affected MediaTek Android devices.
Technical view
The issue is a race-condition use-after-free in MediaTek GPU code, categorized as CWE-662. CVSS 3.1 is 6.4 with local attack vector, high complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in Android 12 or 13 devices using the listed MediaTek MT-series chipsets. Risk depends on OEM firmware status and whether vendor patches containing ALPS07588678 were integrated.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation is local, high-complexity, and requires high privileges, which lowers broad opportunistic risk but still matters on compromised or unmanaged devices.
Researcher notes
Public details are limited to the CVE description, CVSS vector, affected chipset list, Android 12/13 scope, and MediaTek patch identifier. Avoid assuming exploitability beyond local, high-privilege, high-complexity conditions stated in the CVE data.
Mitigation direction
- Identify Android 12 and 13 devices using affected MediaTek chipsets.
- Check OEM and MediaTek guidance for CVE-2023-20611 or ALPS07588678 coverage.
- Apply OEM firmware updates that include the February 2023 MediaTek security fixes.
- Prioritize managed, sensitive, or kiosk-like Android devices for update verification.
Validation and detection
- Inventory device models, Android versions, and MediaTek chipset identifiers.
- Review OEM release notes for CVE-2023-20611 or ALPS07588678 references.
- Confirm installed firmware postdates the relevant vendor security bulletin.
- Track unsupported affected devices as residual local privilege-escalation 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-662: 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-2023-20611 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/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:H/PR:H/UI:N/S:U/C:H/I:H/A:H0.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:L/AC:H/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 Synchronization
Improper Synchronization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.