Security readout for executives and security teams
Plain-English summary
CVE-2026-20412 is a MediaTek camera ISP driver flaw that can let an attacker with existing System-level access gain higher local privileges. It does not require user interaction, but it is not remotely exploitable from the network based on the provided CVSS vector.
Executive priority
Treat as high priority for affected MediaTek-based devices, especially enterprise-managed Android or embedded fleets. Business urgency is driven by privilege escalation impact, not remote unauthenticated exposure. Remediation depends on OEM firmware availability.
Technical view
The issue is an out-of-bounds write in cameraisp caused by a missing bounds check, mapped to CWE-787. MediaTek lists multiple chipsets as affected and identifies Patch ID ALPS10351676 and Issue ID MSV-5733. CVSS 3.1 is 7.8: local, low complexity, low privileges, no user interaction, high impact.
Likely exposure
Exposure is likely limited to devices using the listed MediaTek chipsets and vulnerable firmware containing the cameraisp component. Actual fleet impact depends on OEM device models, firmware builds, and whether the MediaTek February 2026 security fixes have been integrated.
Exploitation context
Provided sources describe local escalation of privilege after a malicious actor already has System privilege. There is no provided evidence of active exploitation, public exploit availability, or inclusion in CISA KEV.
Researcher notes
Key constraints: local attack vector, low attack complexity, prior low privileges, and no user interaction. The privilege requirement is specifically described as already having System privilege. Do not assume broader remote exposure without additional vendor evidence.
Mitigation direction
- Review MediaTek’s February 2026 product security bulletin.
- Request OEM firmware status for Patch ID ALPS10351676.
- Apply vendor or OEM updates that include the MediaTek fix.
- Prioritize managed devices using the listed MediaTek chipsets.
- If no update is available, follow vendor guidance and reduce local attack surface.
Validation and detection
- Inventory devices for the affected MediaTek chipset list.
- Confirm firmware build includes the relevant February 2026 MediaTek security fixes.
- Ask OEMs to confirm inclusion of Patch ID ALPS10351676.
- Track remediation by device model, firmware version, and update date.
- Monitor vendor advisories for revised affected-product or fix information.
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-2026-20412 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://corp.mediatek.com/product-security-bulletin/February-2026CVE 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.