CVE-2025-20646 json
In wlan AP FW, there is a possible out of bounds write due to improper input validation.
published last yr. modified 4mo ago also EUVD-2025-5832
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
In wlan AP FW, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00389074; Issue ID: MSV-1803.
Patch / fix
- mediatek software_development_kit 7.6.7.2
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last yr.
Exploit prediction
0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- MediaTek, Inc. MT6890, MT7915, MT7916, MT7981, MT7986
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
corp.mediatek.com
/product-security-bulletin/March-2025
vendor-advisory
Sources
- CVE List CVE-2025-20646
- NVD CVE-2025-20646
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