Strix
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CVE-2026-20449

MEDIUMCVSS 6.5/10EPSS 0.22%

Last modified

CVE-2026-20449 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In Modem, there is a possible system crash due to a heap buffer overflow. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

In Modem, there is a possible system crash due to a heap buffer overflow. 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: MOLY01760138; Issue ID: MSV-6148.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.22%

12.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MediatekMt6763 FirmwareAll versions
MediatekMt6765 FirmwareAll versions
MediatekMt6767 FirmwareAll versions
MediatekMt6768 FirmwareAll versions
MediatekMt6769 FirmwareAll versions
MediatekMt6771 FirmwareAll versions
MediatekMt6779 FirmwareAll versions
MediatekMt6781 FirmwareAll versions
MediatekMt6783 FirmwareAll versions
MediatekMt6785 FirmwareAll versions
MediatekMt6789 FirmwareAll versions
MediatekMt6813 FirmwareAll versions
MediatekMt6815 FirmwareAll versions
MediatekMt6833 FirmwareAll versions
MediatekMt6835 FirmwareAll versions
MediatekMt6853 FirmwareAll versions
MediatekMt6855 FirmwareAll versions
MediatekMt6858 FirmwareAll versions
MediatekMt6873 FirmwareAll versions
MediatekMt6875 FirmwareAll versions
MediatekMt6877 FirmwareAll versions
MediatekMt6878 FirmwareAll versions
MediatekMt6879 FirmwareAll versions
MediatekMt6880 FirmwareAll versions
MediatekMt6883 FirmwareAll versions
MediatekMt6885 FirmwareAll versions
MediatekMt6886 FirmwareAll versions
MediatekMt6889 FirmwareAll versions
MediatekMt6890 FirmwareAll versions
MediatekMt6891 FirmwareAll versions
MediatekMt6893 FirmwareAll versions
MediatekMt6895 FirmwareAll versions
MediatekMt6896 FirmwareAll versions
MediatekMt6897 FirmwareAll versions
MediatekMt6899 FirmwareAll versions
MediatekMt6980 FirmwareAll versions
MediatekMt6983 FirmwareAll versions
MediatekMt6985 FirmwareAll versions
MediatekMt6986d FirmwareAll versions
MediatekMt6988 FirmwareAll versions
MediatekMt2735 FirmwareAll versions
MediatekMt2737 FirmwareAll versions
MediatekMt6739 FirmwareAll versions
MediatekMt6761 FirmwareAll versions
MediatekMt6762 FirmwareAll versions
MediatekMt6989 FirmwareAll versions
MediatekMt6990 FirmwareAll versions
MediatekMt6991 FirmwareAll versions
MediatekMt6993 FirmwareAll versions
MediatekMt8668 FirmwareAll versions

Showing 50 of 68 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-20449?
In Modem, there is a possible system crash due to a heap buffer overflow. 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: MOLY01760138; Issue ID: MSV-6148.
How severe is CVE-2026-20449?
CVE-2026-20449 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20449?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20449?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST