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Medium 5.3Published Oct 4, 2026

CVE-2026-20541In Modem, there is a possible out of bounds read due to a missing permission check.

Updated under an hour ago ()

Does this affect you?

It affects MediaTek, Inc. MediaTek chipset and 59 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

In Modem, there is a possible out of bounds read due to a missing permission 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: MOLY01774038; Issue ID: MSV-8911.

CVSS
5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-126
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
MediaTek
NVD analysis
Analyzed
Record last updated
Oct 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
MediaTek, Inc. MediaTek chipset
mediatek:chipset (from the name)
MT2716; MT2735; MT2737; MT6739; MT6761; MT6762; MT6763; MT6765; and 75 more ranges
CNA record
mediatek mt6985_firmware
mediatek:mt6985_firmware
all versions
NVD
mediatek mt6986_firmware
mediatek:mt6986_firmware
all versions
NVD
mediatek mt6988_firmware
mediatek:mt6988_firmware
all versions
NVD
mediatek mt6989_firmware
mediatek:mt6989_firmware
all versions
NVD
mediatek mt6990_firmware
mediatek:mt6990_firmware
all versions
NVD
mediatek mt6991_firmware
mediatek:mt6991_firmware
all versions
NVD
mediatek mt6993_firmware
mediatek:mt6993_firmware
all versions
NVD
mediatek mt8666_firmware
mediatek:mt8666_firmware
all versions
NVD
mediatek mt8667_firmware
mediatek:mt8667_firmware
all versions
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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