Read the docs
TI-2026-16621 Aliases CVE-2026-20478GHSA-36p8-6qw9-45qf

Out-of-bounds write in MediaTek chipset

Priority LOW 24CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

In Audio HAL, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10981454 (Note: For MT6880, MT6890, MT6988, MT6990) / AUTO00851293 (Note: For MT2735, MT2737); Issue ID: MSV-7638.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00145 3rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MediaTekMediaTek chipsetMT2735; MT2737; MT6880; MT6890; MT6988; MT6990—No fix listedCNA
  • MediaTek chipset VendorMediaTek Affected MT2735; MT2737; MT6880; MT6890; MT6988; MT6990 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt2735_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt2737_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt2737:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6880_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6890_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6988_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6988:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt2735_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt2737_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt2737:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6880_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6890_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6988_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6988:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt6990_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt6990_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20478
  2. 2026-10-03 Alias added: GHSA-36p8-6qw9-45qf

References

Advisory 1

  • TI-2026-16622 Out-of-bounds read in MediaTek chipset CVSS 3.1HIGH 7.5
  • TI-2026-16576 Out-of-bounds write in MediaTek chipset CVSS 3.1HIGH 8.8
  • TI-2026-16575 Out-of-bounds write in MediaTek chipset CVSS 3.1HIGH 8.0
  • TI-2026-67565 Out-of-bounds write in MediaTek modem could allow privilege escalation CVSS 3.1HIGH 7.5
  • TI-2026-67564 Out-of-bounds write in MediaTek modem chipsets enables escalation CVSS 3.1HIGH 7.5
  • TI-2026-67571 Out-of-bounds write in MediaTek modem chipsets CVSS 3.1HIGH 7.1
See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences