What’s Vulnerable › Vulnerabilities

CVE-2026-20504

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-07 · updated 2026-09-09
• Weakness: CWE-617

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.

Affected products

• Mediatek Mt2735 Firmware: all versions
• Mediatek Mt6833 Firmware: all versions
• Mediatek Mt6853 Firmware: all versions
• Mediatek Mt6855 Firmware: all versions
• Mediatek Mt6873 Firmware: all versions
• Mediatek Mt6875 Firmware: all versions
• Mediatek Mt6877 Firmware: all versions
• Mediatek Mt6880 Firmware: all versions
• Mediatek Mt6883 Firmware: all versions
• Mediatek Mt6885 Firmware: all versions
• Mediatek Mt6889 Firmware: all versions
• Mediatek Mt6890 Firmware: all versions
• Mediatek Mt6891 Firmware: all versions
• Mediatek Mt6893 Firmware: all versions
• Mediatek Mt8675 Firmware: all versions
• Mediatek Mt8771 Firmware: all versions
• Mediatek Mt8791 Firmware: all versions
• Mediatek Mt8791T Firmware: all versions
• Mediatek Mt8797 Firmware: all versions

References

• https://www.mediatek.com/product-security-bulletin/September-2026

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