CVE-2025-20756

MEDIUM
Published Dec 2, 2025 Modified Feb 17, 2026 CWE-1287

Description

In Modem, there is a possible system crash due to a logic error. 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: MOLY01673749; Issue ID: MSV-4643.

CVSS v3.1 Score

6.5
MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-1287 CWE-1287

Affected Products

Vendor Product
mediatek nr15
mediatek mt2735
mediatek mt6833
mediatek mt6833p
mediatek mt6853
mediatek mt6853t
mediatek mt6855
mediatek mt6855t
mediatek mt6873
mediatek mt6875
mediatek mt6875t
mediatek mt6877
mediatek mt6877t
mediatek mt6877tt
mediatek mt6880
mediatek mt6883
mediatek mt6885
mediatek mt6889
mediatek mt6890
mediatek mt6891
mediatek mt6893
mediatek mt8673
mediatek mt8675
mediatek mt8676
mediatek mt8678
mediatek mt8755
mediatek mt8771
mediatek mt8791
mediatek mt8791t
mediatek mt8792
mediatek mt8793
mediatek mt8795t
mediatek mt8797
mediatek mt8798
mediatek mt8863
mediatek mt8873
mediatek mt8883
mediatek mt8893

References

Frequently Asked Questions

What is CVE-2025-20756? +
In Modem, there is a possible system crash due to a logic error. 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: MOLY01673749; Issue ID: MSV-4643. It has a CVSS v3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2025-20756? +
CVE-2025-20756 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-20756? +
CVE-2025-20756 affects products from mediatek, specifically: mt2735, mt6833, mt6833p, mt6853, mt6853t, mt6855, mt6855t, mt6873, mt6875, mt6875t, mt6877, mt6877t, mt6877tt, mt6880, mt6883, mt6885, mt6889, mt6890, mt6891, mt6893, mt8673, mt8675, mt8676, mt8678, mt8755, mt8771, mt8791, mt8791t, mt8792, mt8793, mt8795t, mt8797, mt8798, mt8863, mt8873, mt8883, mt8893, nr15. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-20756? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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