CVE-2025-20726

HIGH
Published Nov 4, 2025 Modified Nov 5, 2025 CWE-122 CWE-787

Description

In Modem, there is a possible out of bounds write due to an incorrect 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: MOLY01672598; Issue ID: MSV-4622.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-122 CWE-122
CWE-787 Out-of-bounds Write

Affected Products

Vendor Product
mediatek lr12a
mediatek nr15
mediatek nr16
mediatek nr17
mediatek nr17r
mediatek mt2735
mediatek mt2737
mediatek mt6739
mediatek mt6761
mediatek mt6762
mediatek mt6762d
mediatek mt6762m
mediatek mt6763
mediatek mt6765
mediatek mt6765t
mediatek mt6767
mediatek mt6768
mediatek mt6769
mediatek mt6769k
mediatek mt6769s
mediatek mt6769t
mediatek mt6769z
mediatek mt6771
mediatek mt6813
mediatek mt6833
mediatek mt6833p
mediatek mt6835
mediatek mt6835t
mediatek mt6853
mediatek mt6853t
mediatek mt6855
mediatek mt6855t
mediatek mt6873
mediatek mt6875
mediatek mt6875t
mediatek mt6877
mediatek mt6877t
mediatek mt6877tt
mediatek mt6878
mediatek mt6878m
mediatek mt6879
mediatek mt6880
mediatek mt6883
mediatek mt6885
mediatek mt6886
mediatek mt6889
mediatek mt6890
mediatek mt6891
mediatek mt6893
mediatek mt6895
mediatek mt6895tt
mediatek mt6896
mediatek mt6897
mediatek mt6899
mediatek mt6980
mediatek mt6980d
mediatek mt6983
mediatek mt6983t
mediatek mt6985
mediatek mt6985t
mediatek mt6989
mediatek mt6989t
mediatek mt6990
mediatek mt6991
mediatek mt8666
mediatek mt8667
mediatek mt8673
mediatek mt8675
mediatek mt8676
mediatek mt8678
mediatek mt8765
mediatek mt8766
mediatek mt8766r
mediatek mt8768
mediatek mt8771
mediatek mt8786
mediatek mt8788
mediatek mt8788e
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-2025-20726? +
In Modem, there is a possible out of bounds write due to an incorrect 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: MOLY01672598; Issue ID: MSV-4622. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-20726? +
CVE-2025-20726 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-20726? +
CVE-2025-20726 affects products from mediatek, specifically: lr12a, mt2735, mt2737, mt6739, mt6761, mt6762, mt6762d, mt6762m, mt6763, mt6765, mt6765t, mt6767, mt6768, mt6769, mt6769k, mt6769s, mt6769t, mt6769z, mt6771, mt6813, mt6833, mt6833p, mt6835, mt6835t, mt6853, mt6853t, mt6855, mt6855t, mt6873, mt6875, mt6875t, mt6877, mt6877t, mt6877tt, mt6878, mt6878m, mt6879, mt6880, mt6883, mt6885, mt6886, mt6889, mt6890, mt6891, mt6893, mt6895, mt6895tt, mt6896, mt6897, mt6899, mt6980, mt6980d, mt6983, mt6983t, mt6985, mt6985t, mt6989, mt6989t, mt6990, mt6991, mt8666, mt8667, mt8673, mt8675, mt8676, mt8678, mt8765, mt8766, mt8766r, mt8768, mt8771, mt8786, mt8788, mt8788e, mt8791, mt8791t, mt8792, mt8793, mt8795t, mt8797, mt8798, mt8863, mt8873, mt8883, mt8893, nr15, nr16, nr17, nr17r. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-20726? +
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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