Vulnerability in Mediatek Mt7981
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Mediatek Mt7981
- Mediatek Mt7986
- Mediatek Software Development Kit
- Mediatek, Inc. Mt7981, Mt7986 — versions SDK release 7.6.7.0 and before
Weakness classification (CWE)
References
- corp.mediatek.com/product-security-bulletin/February-2025 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-20637?
- CVE-2025-20637 is a high-severity vulnerability in Mediatek Mt7981, classified under CWE-248. CVSS score: 7.5/10. Published 2025-02-03.
- How severe is CVE-2025-20637?
- High severity. CVSS v3 base score is 7.5 out of 10.