VulnerabilityAnalyzed
CVE-2026-20586
In vdec, there is a possible out of bounds write due to a missing bounds check.
HIGH 8.8EPSS 0.39%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.39% probability · 33th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- mediatek/mt8910 firmware · mediatek/mt2718 firmware · mediatek/mt6768 firmware · mediatek/mt6789 firmware · mediatek/mt6769 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 · mediatek/mt8367 firmware · mediatek/mt8391 firmware · mediatek/mt8395 firmware · mediatek/mt8668 firmware · mediatek/mt8676 firmware · mediatek/mt8678 firmware · mediatek/mt8696 firmware · +5 more
- Source
- security@mediatek.com
EPSS moved from 0.4% on 5 October 2026 to 0.4% on 26 October 2026.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.