Technology · MediaTek
MediaTek MT6891 vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 21 vulnerabilities in MediaTek MT6891: 0 in the last 7 days and 10 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-20579, was published on 5 October 2026. Nothing in the last four weeks, down from 8 vulnerabilities in the four before.
- Last 7 days
- 0
- Last 90 days
- 10
- Critical, all time
- 0
- Exploited in the wild
- 0
About MediaTek MT6891
MT6891 is a mobile system-on-chip processor designed by MediaTek for smartphones and tablets.
Latest MediaTek MT6891 vulnerabilities
- CVE-2026-20579: MediaTek vdec out-of-bounds write in type confusionmediumCVSS 6.7EPSS 0.1%
- CVE-2026-20544: MediaTek out of bounds write in modemmediumCVSS 6.8EPSS 0.2%
- CVE-2026-20543: MediaTek Modem information disclosure due to logic errormediumCVSS 5.5EPSS 0.1%
- CVE-2026-20538: MediaTek Modem out-of-bounds read due to missing permission checkmediumCVSS 5.3EPSS 0.2%
- CVE-2026-20534: MediaTek Modem out of bounds readmediumCVSS 5.3EPSS 0.2%
- CVE-2026-20531: MediaTek APU memory corruption use-after-freehighCVSS 8.4EPSS 0.1%
- CVE-2026-20523: MediaTek neuropilot out-of-bounds write privilege escalationhighCVSS 8.4EPSS 0.1%
- CVE-2026-20520: MediaTek Modem out of bounds write in ModemhighCVSS 7.5EPSS 0.2%
- CVE-2026-20504: MediaTek Modem denial of service due to missing bounds checkmediumCVSS 5.3EPSS 0.2%
- CVE-2026-20503: MediaTek Modem system crash due to missing bounds checkmediumCVSS 5.3EPSS 0.2%
- CVE-2026-20479: MediaTek Modem out-of-bounds read due to missing bounds checkhighCVSS 7.5EPSS 0.7%
- CVE-2026-20457: MediaTek Modem improper input validation in multiple chipsetsinfo
- CVE-2026-20450: In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of…mediumCVSS 6.5EPSS 0.3%
- CVE-2026-20449: In Modem, there is a possible system crash due to a heap buffer overflow. This could lead to remote denial of service…mediumCVSS 6.5EPSS 0.2%
- CVE-2026-20433: In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation…highCVSS 8.8EPSS 0.3%
- CVE-2025-20794: In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of…mediumCVSS 6.5EPSS 0.3%
- CVE-2025-20793: In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of…mediumCVSS 6.5EPSS 0.3%
- CVE-2025-20761: In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of…mediumCVSS 6.5EPSS 0.3%
- CVE-2025-20760: In Modem, there is a possible read of uninitialized heap data due to an uncaught exception. This could lead to remote…mediumCVSS 6.5EPSS 0.3%
- CVE-2025-20792: In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of…mediumCVSS 5.3EPSS 0.4%
- CVE-2025-20755: In Modem, there is a possible application crash due to improper input validation. This could lead to remote denial of…mediumCVSS 5.3EPSS 0.4%
Most severe MediaTek MT6891 vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-20433: In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation…highCVSS 8.8EPSS 0.3%
- CVE-2026-20523: MediaTek neuropilot out-of-bounds write privilege escalationhighCVSS 8.4EPSS 0.1%
- CVE-2026-20531: MediaTek APU memory corruption use-after-freehighCVSS 8.4EPSS 0.1%
- CVE-2026-20479: MediaTek Modem out-of-bounds read due to missing bounds checkhighCVSS 7.5EPSS 0.7%
- CVE-2026-20520: MediaTek Modem out of bounds write in ModemhighCVSS 7.5EPSS 0.2%
- CVE-2026-20544: MediaTek out of bounds write in modemmediumCVSS 6.8EPSS 0.2%
- CVE-2026-20579: MediaTek vdec out-of-bounds write in type confusionmediumCVSS 6.7EPSS 0.1%
- CVE-2026-20450: In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of…mediumCVSS 6.5EPSS 0.3%
- CVE-2025-20760: In Modem, there is a possible read of uninitialized heap data due to an uncaught exception. This could lead to remote…mediumCVSS 6.5EPSS 0.3%
- CVE-2025-20794: In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of…mediumCVSS 6.5EPSS 0.3%
Vulnerabilities per week
Nothing in the last four weeks, down from 8 vulnerabilities in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 2 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 8 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
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A live badge for a README, a status page or an internal wiki: how many MediaTek MT6891 vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/mt6891)<a href="https://junglewise.ai/threats/technologies/mt6891"><img src="https://junglewise.ai/threats/technologies/mt6891/badge.svg" alt="MediaTek MT6891 vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/mt6891.json, and this page as text at https://junglewise.ai/threats/technologies/mt6891.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "MediaTek MT6891 vulnerabilities", https://junglewise.ai/threats/technologies/mt6891, 9 November 2026.