CVE-2026-20542CWE-416

CVE-2026-20542

Medium · published October 5, 2026

CVSS v3.1
6.7
EPSS
0%
Percentile
1.4
In the wild
Unconfirmed
What it is

In apusys, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11076799; Issue ID: MSV-8143.

The record
Technical detail
CVSS v3.1
6.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00114 · 1.4th percentile
Weakness
CWE-416 · Use After Free
Published
2026-10-05T06:16Z
Affected products (19)
ProductVersionsFixed in
mediatek/mt2718_firmwareall versions—
mediatek/mt6878_firmwareall versions—
mediatek/mt6897_firmwareall versions—
mediatek/mt6899_firmwareall versions—
mediatek/mt6989_firmwareall versions—
mediatek/mt6991_firmwareall versions—
mediatek/mt8171_firmwareall versions—
mediatek/mt8188_firmwareall versions—
mediatek/mt8189_firmwareall versions—
mediatek/mt8196_firmwareall versions—
mediatek/mt8370_firmwareall versions—
mediatek/mt8371_firmwareall versions—
mediatek/mt8390_firmwareall versions—
mediatek/mt8391_firmwareall versions—
mediatek/mt8395_firmwareall versions—
mediatek/mt8678_firmwareall versions—
mediatek/mt8792_firmwareall versions—
mediatek/mt8793_firmwareall versions—
mediatek/mt8796_firmwareall versions—
References (1)
https://www.mediatek.com/product-security-bulletin/October-2026 · [email protected]
EPSS history
Timeline
  • 07 OCT 03:40Z
    EPSS moved — → 0%
    epss
  • 05 OCT 01:40Z
    In apusys, there is a possible memory corruption due to use after free
    cvelistv5