In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00755024; Issue ID: MSV-7865.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Mediatek
  • Mt2735
  • Mt2735 Firmware
  • Mt6833
  • Mt6833 Firmware
  • Mt6853
  • Mt6853 Firmware
  • Mt6855
  • Mt6855 Firmware
  • Mt6873
  • Mt6873 Firmware
  • Mt6875
  • Mt6875 Firmware
  • Mt6877
  • Mt6877 Firmware
  • Mt6880
  • Mt6880 Firmware
  • Mt6883
  • Mt6883 Firmware
  • Mt6885
  • Mt6885 Firmware
  • Mt6889
  • Mt6889 Firmware
  • Mt6890
  • Mt6890 Firmware
  • Mt6891
  • Mt6891 Firmware
  • Mt6893
  • Mt6893 Firmware
  • Mt8675
  • Mt8675 Firmware
  • Mt8771
  • Mt8771 Firmware
  • Mt8791
  • Mt8791 Firmware
  • Mt8791t
  • Mt8791t Firmware
  • Mt8797
  • Mt8797 Firmware
Mediatek, Inc.
  • Mediatek Chipset

Configuration 1 [-]

AND
cpe:2.3:o:mediatek:mt2735_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND
cpe:2.3:o:mediatek:mt6833_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND
cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND
cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND
cpe:2.3:o:mediatek:mt6873_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND
cpe:2.3:o:mediatek:mt6875_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6875:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND
cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*

Configuration 8 [-]

AND
cpe:2.3:o:mediatek:mt6880_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:*

Configuration 9 [-]

AND
cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*

Configuration 10 [-]

AND
cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*

Configuration 11 [-]

AND
cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*

Configuration 12 [-]

AND
cpe:2.3:o:mediatek:mt6890_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*

Configuration 13 [-]

AND
cpe:2.3:o:mediatek:mt6891_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6891:-:*:*:*:*:*:*:*

Configuration 14 [-]

AND
cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*

Configuration 15 [-]

AND
cpe:2.3:o:mediatek:mt8675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8675:-:*:*:*:*:*:*:*

Configuration 16 [-]

AND
cpe:2.3:o:mediatek:mt8771_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8771:-:*:*:*:*:*:*:*

Configuration 17 [-]

AND
cpe:2.3:o:mediatek:mt8791_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:*

Configuration 18 [-]

AND
cpe:2.3:o:mediatek:mt8791t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*

Configuration 19 [-]

AND
cpe:2.3:o:mediatek:mt8797_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8797:-:*:*:*:*:*:*:*

No data.

References
Link Providers
https://www.mediatek.com/product-security-bulletin/September-2026 cve-icon cve-icon
History

Wed, 09 Sep 2026 03:15:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek
Mediatek mt2735
Mediatek mt2735 Firmware
Mediatek mt6833
Mediatek mt6833 Firmware
Mediatek mt6853
Mediatek mt6853 Firmware
Mediatek mt6855
Mediatek mt6855 Firmware
Mediatek mt6873
Mediatek mt6873 Firmware
Mediatek mt6875
Mediatek mt6875 Firmware
Mediatek mt6877
Mediatek mt6877 Firmware
Mediatek mt6880
Mediatek mt6880 Firmware
Mediatek mt6883
Mediatek mt6883 Firmware
Mediatek mt6885
Mediatek mt6885 Firmware
Mediatek mt6889
Mediatek mt6889 Firmware
Mediatek mt6890
Mediatek mt6890 Firmware
Mediatek mt6891
Mediatek mt6891 Firmware
Mediatek mt6893
Mediatek mt6893 Firmware
Mediatek mt8675
Mediatek mt8675 Firmware
Mediatek mt8771
Mediatek mt8771 Firmware
Mediatek mt8791
Mediatek mt8791 Firmware
Mediatek mt8791t
Mediatek mt8791t Firmware
Mediatek mt8797
Mediatek mt8797 Firmware
CPEs cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6875:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6891:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8675:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8771:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8797:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt2735_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6833_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6853_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6855_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6873_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6875_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6877_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6880_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6883_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6885_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6889_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6890_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6891_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt6893_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8771_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8791_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8791t_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:mt8797_firmware:-:*:*:*:*:*:*:*
Vendors & Products Mediatek
Mediatek mt2735
Mediatek mt2735 Firmware
Mediatek mt6833
Mediatek mt6833 Firmware
Mediatek mt6853
Mediatek mt6853 Firmware
Mediatek mt6855
Mediatek mt6855 Firmware
Mediatek mt6873
Mediatek mt6873 Firmware
Mediatek mt6875
Mediatek mt6875 Firmware
Mediatek mt6877
Mediatek mt6877 Firmware
Mediatek mt6880
Mediatek mt6880 Firmware
Mediatek mt6883
Mediatek mt6883 Firmware
Mediatek mt6885
Mediatek mt6885 Firmware
Mediatek mt6889
Mediatek mt6889 Firmware
Mediatek mt6890
Mediatek mt6890 Firmware
Mediatek mt6891
Mediatek mt6891 Firmware
Mediatek mt6893
Mediatek mt6893 Firmware
Mediatek mt8675
Mediatek mt8675 Firmware
Mediatek mt8771
Mediatek mt8771 Firmware
Mediatek mt8791
Mediatek mt8791 Firmware
Mediatek mt8791t
Mediatek mt8791t Firmware
Mediatek mt8797
Mediatek mt8797 Firmware

Mon, 07 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
Title Modem Bounds Check Omission Causing Remote Denial of Service on MediaTek Chipsets

Mon, 07 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 07 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
First Time appeared Mediatek, Inc.
Mediatek, Inc. mediatek Chipset
Vendors & Products Mediatek, Inc.
Mediatek, Inc. mediatek Chipset

Mon, 07 Sep 2026 02:00:00 +0000

Type Values Removed Values Added
Description In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00755024; Issue ID: MSV-7865.
Weaknesses CWE-617
References
cve-icon MITRE

Status: PUBLISHED

Assigner: MediaTek

Published: 2026-09-07T01:57:18.937Z

Updated: 2026-09-07T10:36:49.120Z

Reserved: 2025-11-03T01:30:59.028Z

Link: CVE-2026-20504

cve-icon Vulnrichment

Updated: 2026-09-07T10:36:43.282Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-07T02:17:19.143

Modified: 2026-09-09T02:55:33.787

Link: CVE-2026-20504

cve-icon Redhat

No data.