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TI-2026-16595 Aliases CVE-2026-20452GHSA-mfvp-3qw7-v5gw

Heap-based buffer overflow in MediaTek chipset

Priority LOW 37CWE-122Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
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-122 and the CVSS impact.

Summary

In wlan AP driver, there is a possible memory corruption due to a heap buffer overflow. This could lead to remote (proximal/adjacent) code execution with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480138; Issue ID: MSV-6295.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00435 38th 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 chipsetMT6890; MT7615; MT7915; MT7916; MT7981; MT7986; MT7990; MT7992; MT7993—No fix listedCNA
  • MediaTek chipset VendorMediaTek Affected MT6890; MT7615; MT7915; MT7916; MT7981; MT7986; MT7990; MT7992; MT7993 Fixed in — No fix listed CNA

CPE configurations NVD · 18

CPEVersionsRoleVendor
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:mt7615_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt7915_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt7916_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt7981_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • 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:mt7615_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7615:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt7915_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt7916_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt7981_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
Show 8 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:mediatek:mt7986_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt7990_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7990:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt7992_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7992:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
cpe:2.3:o:mediatek:mt7993_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableMediaTek
cpe:2.3:h:mediatek:mt7993:-:*:*:*:*:*:*:*not specified by NVDRunning onMediaTek
  • cpe:2.3:o:mediatek:mt7986_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt7990_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7990:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt7992_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7992:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
  • cpe:2.3:o:mediatek:mt7993_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·MediaTek
  • cpe:2.3:h:mediatek:mt7993:-:*:*:*:*:*:*:* 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-2026-20452
  2. 2026-10-03 Alias added: GHSA-mfvp-3qw7-v5gw

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 25 →

Sources

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