Read the docs
TI-2026-67576 Aliases CVE-2026-20531GHSA-f6jh-r28v-p526

Use after free in MediaTek apu component allows privilege escalation

Priority LOW 37CWE-416Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

The apu component in MediaTek chipsets, including models MT6899, MT6993, MT8668, MT8781, MT8793 and other models, contains a use after free flaw (CWE-416) that can corrupt memory. A local attacker with no additional execution privileges can escalate privileges, and no user interaction is needed. The flaw has high impact on confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

In apu, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249016; Issue ID: MSV-9169.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00125 2nd 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
Total

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 chipsetMT6899; MT6993; MT8668; MT8781; MT8793; MT8910—No fix listedCNA
  • MediaTek chipset VendorMediaTek Affected MT6899; MT6993; MT8668; MT8781; MT8793; MT8910 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt8910_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8910:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt8910_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8910:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6899_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6899:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt6993_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt6993:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8668_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8668:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt8781_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8781:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt8793_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt8793_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt8793:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek

Remediation

The sources list no fixed version for MediaTek chipset.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-20531
  2. 2026-10-05 Alias added: GHSA-f6jh-r28v-p526
  3. 2026-10-06 CISA SSVC decision points changed

References

Advisory 1

  • TI-2026-16576 Out-of-bounds write in MediaTek chipset CVSS 3.1HIGH 8.8
  • TI-2026-16643 Heap-based buffer overflow in MediaTek chipset CVSS 3.1HIGH 8.4
  • TI-2026-16642 Heap-based buffer overflow in MediaTek chipset CVSS 3.1HIGH 8.4
  • TI-2026-67569 Memory corruption in MediaTek apu lets local users escalate privileges CVSS 3.1HIGH 8.4
  • TI-2026-67566 Privilege escalation in MediaTek Video HAL from missing bounds check CVSS 3.1HIGH 8.4
  • TI-2026-16575 Out-of-bounds write in MediaTek chipset CVSS 3.1HIGH 8.0
See all 37 →

Sources

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