CVE-2026-20598: In Modem, there is a possible out of bounds read due to an integer overflow.

In Modem, there is a possible out of bounds read due to an integer overflow.

In Modem, there is a possible out of bounds read due to an integer 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: MOLY01755742; Issue ID: MSV-8896.

Description from the National Vulnerability Database, published by security@mediatek.com

What it means for a small business

MediaTek chipset is on the computers, phones or browsers your team uses every day. Turn on automatic updates and restart: most of these fixes only take effect after a restart.

Check your own setup

Website check: reads what your site runs from the outside (WordPress version, plugins it can see, old server software) and matches it against this database.
Server check: what your web server says about itself, and whether that version has known flaws.

Sources

Part of the Huttenlocher Technologies vulnerability database, refreshed twice a day from CISA and the NVD. The title, category and plain-language guidance are ours; check the linked record before acting on a detail. This is general guidance, not a review of your systems.

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