CVE-2022-20587 — In ppmp_validate_wsm of drm_fw.c, there is a possible EoP due to improper input validation

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HIGH

In ppmp_validate_wsm of drm_fw.c, there is a possible EoP due to improper input validation

Published Dec 16, 2022

7.8

HIGH

CVSS 3.1

EPSS 0.13%

Description

In ppmp_validate_wsm of drm_fw.c, there is a possible EoP due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-238720411References: N/A

Affected products

Vendor n/a Product Android Default
n/a
- Version
  Android kernel
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Android

n/a

Version	Status	Constraints
Android kernel	affected	-

Remediation

No remediation recorded yet.

Metrics

0.13% 0.00130

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00130

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (8 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.13% (0.00130)	2.19th	v5 (v2026.06.15)
Jun 15, 2026	0.13% (0.00125)	2.51th	v5 (v2026.06.15)
Mar 17, 2025	0.02% (0.00016)	1.90th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	1.04% (0.01036)	43.31th	v2 (v2022.01.01)
Dec 21, 2022	1.04% (0.01036)	42.32th	v2 (v2022.01.01)
Dec 17, 2022	2.56% (0.02559)	81.54th	v2 (v2022.01.01)