Out-of-bounds write in MediaTek MT6639, MT6653, MT6985, MT6989, MT6990, MT6991, MT7925…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
In Bluetooth FW, there is a possible system crash 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: ALPS09741871; Issue ID: MSV-3317.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MediaTek | MT6639, MT6653, MT6985, MT6989, MT6990, MT6991, MT7925, MT7927, MT8196, MT8678, MT8796 | Android 13.0, 14.0, 15.0 / SDK release 3.7 and before / openWRT 21.02, 23.05 | — | No fix listed | CNA |
- MT6639, MT6653, MT6985, MT6989, MT6990, MT6991, MT7925, MT7927, MT8196, MT8678, MT8796 VendorMediaTek Affected Android 13.0, 14.0, 15.0 / SDK release 3.7 and before / openWRT 21.02, 23.05 Fixed in — No fix listed CNA
CPE configurations NVD · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:* | up to 3.7 | Vulnerable | MediaTek |
| cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:* | 13.0 | Vulnerable | |
| cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:* | 14.0 | Vulnerable | |
| cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:* | 15.0 | Vulnerable | |
| cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:* | 21.02.0 | Vulnerable | openwrt |
| cpe:2.3:o:openwrt:openwrt:23.05:*:*:*:*:*:*:* | 23.05 | Vulnerable | openwrt |
| cpe:2.3:h:mediatek:mt6639:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt6653:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
- cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:* Versions up to 3.7 Vulnerable ·MediaTek
- cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:* Versions 13.0 Vulnerable ·Google
- cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:* Versions 14.0 Vulnerable ·Google
- cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·Google
- cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:* Versions 21.02.0 Vulnerable ·openwrt
- cpe:2.3:o:openwrt:openwrt:23.05:*:*:*:*:*:*:* Versions 23.05 Vulnerable ·openwrt
- cpe:2.3:h:mediatek:mt6639:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt6653:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt6985:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt6989:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
| cpe:2.3:h:mediatek:mt8796:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MediaTek |
- cpe:2.3:h:mediatek:mt6990:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt6991:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt8678:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
- cpe:2.3:h:mediatek:mt8796:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MediaTek
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-20695
- 2026-10-03 Alias added: GHSA-69gv-6pjj-726f
References
More MediaTek Software Development Kit vulnerabilities
- TI-2024-13053 Improper input validation in MediaTek MT6890, MT7915, MT7916, MT7981, MT7986 CVSS 3.1CRITICAL 9.8
- TI-2025-14754 Out-of-bounds write in MediaTek MT7615, MT7622, MT7663 CVSS 3.1CRITICAL 9.8
- TI-2025-14753 Out-of-bounds write in MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981… CVSS 3.1CRITICAL 9.8
- TI-2025-14752 Out-of-bounds write in MediaTek MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981… CVSS 3.1CRITICAL 9.8
- TI-2025-14751 Out-of-bounds write in MediaTek MT6890, MT7615, MT7622, MT7663, MT7915 CVSS 3.1CRITICAL 9.8
- TI-2025-14745 Incorrect authorization in MediaTek MT6890, MT6990, MT7915, MT7916, MT7981, MT7986… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-20695 · CVE Program
- CVE-2025-20695 · NVD
- FIRST EPSS
- GHSA-69gv-6pjj-726f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences