Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2022-20421
n/a Android — In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free.
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0063 48.9 —
AFFECTED
Product Versions Fixed
Android Android kernel – —
TIMELINE
Oct 14 Reserved by google_android
Oct 11 Published (CNA: google_android)
Oct 14 ENRICHED — CVE-2022-20421 (Android). Received CVSS 7.8 and CPE data from NVD.
Description
In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. 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-239630375References: Upstream kernel
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| October 14, 2021 | Reserved | Reserved by google_android |
| October 11, 2022 | Published | Published (CNA: google_android) |
| October 14, 2026 | ENRICHED | ENRICHED — CVE-2022-20421 (Android). Received CVSS 7.8 and CPE data from NVD. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| n/a | Android | — | Android kernel | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-20421 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
