Security readout for executives and security teams
Plain-English summary
CVE-2026-20411 is a MediaTek cameraisp memory-safety flaw in listed chipsets. A malicious actor with local privileged access could trigger impact without user interaction. For businesses, urgency depends on whether managed phones, tablets, Chromebooks, IoT, or embedded devices use the affected MediaTek chipsets and receive OEM firmware updates.
Executive priority
Treat as a high-priority firmware validation item, not a broad internet emergency. The main business risk is unmanaged affected devices remaining unpatched because chipset-level vulnerabilities depend on OEM firmware delivery and asset visibility.
Technical view
The issue is a use-after-free in MediaTek cameraisp, tracked as CWE-416. CVSS 3.1 is 7.8: local attack vector, low complexity, low privileges, no user interaction, with high confidentiality, integrity, and availability impact. MediaTek lists Patch ID ALPS10351676 and Issue ID MSV-5737.
Likely exposure
Exposure is limited to devices containing the listed MediaTek chipsets and running vulnerable firmware. The CVE record marks default status as unaffected outside the named chipset list. Asset owners usually need OEM device model mapping because chipset presence is not always visible in software inventory.
Exploitation context
Sources do not report active exploitation, and this CVE is not listed as KEV in the provided data. Exploitation is local and requires prior low-privileged access per CVSS, while the description also references a malicious actor already having System privilege for local denial of service.
Researcher notes
Key uncertainty is the exact affected device population. The public record identifies chipsets and cameraisp but does not provide device-model mappings, detailed root cause, or exploit indicators. Avoid assuming exploitability beyond the local, privileged context stated in the CVSS and description.
Mitigation direction
- Check MediaTek February 2026 bulletin and OEM advisories for firmware updates referencing ALPS10351676.
- Prioritize updates for devices with listed MediaTek chipsets in managed or sensitive environments.
- Ask vendors to confirm whether specific device models include affected chipsets and patched firmware.
- Restrict untrusted local app installation where affected devices cannot be updated promptly.
Validation and detection
- Inventory devices likely using the listed MediaTek chipset models.
- Map device models to chipset and firmware versions using OEM documentation or vendor support.
- Verify installed updates reference the MediaTek February 2026 bulletin or Patch ID ALPS10351676.
- Monitor CISA KEV and vendor bulletins for any later exploitation or remediation updates.
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-416: 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-2026-20411 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.