All vulnerabilities
CVE-2026-20520

MediaTek chipset: In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the atta

MediaTek, Inc. MediaTek chipset
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.23%Chance of exploitation activity in the next 30 days, higher than 12% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published5 Oct 2026Updated 6 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, 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: MOLY01778988; Issue ID: MSV-8897.

Text from CVE List

Affected versions 30

  • MediaTek chipsetaffected: MT2716CVE List
  • MediaTek chipsetaffected: MT2735CVE List
  • MediaTek chipsetaffected: MT2737CVE List
  • MediaTek chipsetaffected: MT6813CVE List
  • MediaTek chipsetaffected: MT6815CVE List
  • MediaTek chipsetaffected: MT6833CVE List
  • MediaTek chipsetaffected: MT6835CVE List
  • MediaTek chipsetaffected: MT6853CVE List
  • MediaTek chipsetaffected: MT6855CVE List
  • MediaTek chipsetaffected: MT6858CVE List
  • MediaTek chipsetaffected: MT6873CVE List
  • MediaTek chipsetaffected: MT6875CVE List
  • MediaTek chipsetaffected: MT6877CVE List
  • MediaTek chipsetaffected: MT6878CVE List
  • MediaTek chipsetaffected: MT6879CVE List
  • MediaTek chipsetaffected: MT6880CVE List
  • MediaTek chipsetaffected: MT6881CVE List
  • MediaTek chipsetaffected: MT6883CVE List
  • MediaTek chipsetaffected: MT6885CVE List
  • MediaTek chipsetaffected: MT6886CVE List
  • MediaTek chipsetaffected: MT6889CVE List
  • MediaTek chipsetaffected: MT6890CVE List
  • MediaTek chipsetaffected: MT6891CVE List
  • MediaTek chipsetaffected: MT6893CVE List
  • MediaTek chipsetaffected: MT6895CVE List
  • MediaTek chipsetaffected: MT6896CVE List
  • MediaTek chipsetaffected: MT6897CVE List
  • MediaTek chipsetaffected: MT6899CVE List
  • MediaTek chipsetaffected: MT6980CVE List
  • MediaTek chipsetaffected: MT6982CVE List

References 1