CVE-2025-20637: mt7981 — Fix

Description

In network HW, there is a possible system hang due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00399035; Issue ID: MSV-2380.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-248 CWE-248

CWE-754 CWE-754

Affected Products

Vendor	Product	Versions
mediatek	software_development_kit	< 7.6.7.0
mediatek	mt7981	All
mediatek	mt7986	All

References

Advisories & Patches

https://corp.mediatek.com/product-security-bulletin/February-2025

Frequently Asked Questions

What is CVE-2025-20637? +

In network HW, there is a possible system hang due to an uncaught exception. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00399035; Issue ID: MSV-2380. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-20637? +

CVE-2025-20637 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-2025-20637? +

CVE-2025-20637 affects products from mediatek, specifically: mt7981, mt7986, software_development_kit. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-20637? +

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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