CVE-2025-20670 Security feature bypass in MT2737, MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6879, MT6886, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8666, MT8667, MT8673, MT8675, MT8676, MT8678, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8788E, MT8789, MT8791, MT8791T, MT8795T, MT8797, MT8798
Attackers can bypass certificate validation in MediaTek modems to disclose information via rogue base stations, requiring user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-20670?
CVE-2025-20670 is a medium-severity vulnerability in Mediatek Nr16, published on 5 May 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In Modem, there is a possible permission bypass due to improper certificate validation. This could lead to remote information disclosure, if a UE has connected to a rogue base station controlled by the attacker, with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01334347; Issue ID: MSV-2772.
Weakness: CWE-295
Which versions are affected by CVE-2025-20670?
It affects 3 products.
Products include Mediatek Nr16, Mediatek Nr17, Mediatek Nr17r.
How do I fix CVE-2025-20670?
No fix has been published for CVE-2025-20670 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-20670 being exploited?
There is no known exploitation of CVE-2025-20670 in the wild and no public exploit code.
Other vulnerabilities in Mediatek Nr16
- CVE-2024-20067 Memory corruption in MT6813, MT6815, MT6835, MT6878, MT6897, MT6899, MT6986, MT6986D, MT6991, MT8792
- CVE-2025-20634 Memory corruption in MT2737, MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6879, MT6886, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8673, MT8676, MT8678, MT8795T, MT8798, MT8863
- CVE-2024-20066 Memory corruption in MT6298, MT6813, MT6815, MT6835, MT6878, MT6879, MT6895, MT6895T, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6986, MT6986D, MT6990, MT6991, MT8673, MT8792, MT8798
- CVE-2024-20151 Memory corruption in MT2737, MT2739, MT6789, MT6813, MT6815, MT6835, MT6835T, MT6855, MT6878, MT6878T, MT6879, MT6886, MT6895, MT6895T, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6985, MT6986, MT6986D, MT6988, MT6989, MT6990, MT6991, MT8676, MT8678, MT8798, MT8863
- CVE-2024-20131 Memory corruption in MT2737, MT2739, MT6789, MT6813, MT6815, MT6835, MT6835T, MT6855, MT6878, MT6878T, MT6879, MT6886, MT6895, MT6895T, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6985, MT6986, MT6986D, MT6988, MT6989, MT6990, MT6991, MT8673, MT8676, MT8795T, MT8798
Sources
Also known as GHSA-533g-6748-wxw7.