CVE-2026-20586
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead...
CVE-2026-20586 is a high vulnerability (CVSS 8.8) in Mediatek Mt2718 Firmware, published October 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. No source names a fixed version.
- Severity
- 8.8 HighCVSS 3.1, CVE List
- Exploit chance
- 0.39%EPSS, 33rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
- mediatek mt2718 firmware
- mediatek mt6768 firmware
- mediatek mt6769 firmware
- mediatek mt6789 firmware
- mediatek mt6833 firmware
- mediatek mt6855 firmware
- mediatek mt6877 firmware
- mediatek mt8186 firmware
- mediatek mt8188 firmware
- mediatek mt8189 firmware
- mediatek mt8195 firmware
- mediatek mt8196 firmware
Show 14 moreShow less
- mediatek mt8367 firmware
- mediatek mt8391 firmware
- mediatek mt8395 firmware
- mediatek mt8668 firmware
- mediatek mt8676 firmware
- mediatek mt8678 firmware
- mediatek mt8696 firmware
- mediatek mt8781 firmware
- mediatek mt8788e firmware
- mediatek mt8792 firmware
- mediatek mt8793 firmware
- mediatek mt8799 firmware
- mediatek mt8910 firmware
- mediatek, inc. mediatek chipset
Affected packages
| Package | Affected | Fixed |
|---|---|---|
:unknown:Android From an advisory covering 2 CVEs | SoCVersion:0 up to SoCVersion:2026-11-05, plus listed versions SoCVersion | SoCVersion:2026-11-05 |
What each source reports
CVE List Score used
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
- Record
CVE-2026-20586- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2026-92208
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
- Record
EUVD-2026-92208- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-32jv-4xgq-q975
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead...
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
- Record
GHSA-32jv-4xgq-q975- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.
- Record
CVE-2026-20586- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.