CVE-2021-28663
Exploited in the Wild
✓ Confirmed 0-Day
★ Google Project Zero
Triaged: March 5, 2026
3 articles
EPSS Score
Source: FIRST.org · 2026-05-24
3.62%
probability
This CVE has a 3.62% probability
of being exploited in the next 30 days.
0%
Top 88.0th percentile of all CVEs
100%
CVSS score unavailable
Neither CIRCL nor NVD returned a CVSS score for this CVE.
View on VulnerabilityLookup ↗
Description
Project ZeroUse-after-free in Mali GPU
Attack Intelligence
CWE-118
· Incorrect Access of Indexable Resource ('Range Error')
CWE-119
· Buffer Overflow
CWE-416
· Use After Free
CWE-664
· Improper Control of a Resource Through its Lifetime
CWE-666
· Operation on Resource in Wrong Phase of Lifetime
CWE-672
· Operation on a Resource after Expiration or Release
CWE-825
· Expired Pointer Dereference
Google Project Zero
Patched
May 3, 2021
Reported by
???
Root Cause Analysis
???
Exploits & PoC
lntrx/CVE-2021-28663
A basic PoC leak for CVE-2021-28663 (Internal of the Android kernel backdoor vulnerability)
126
1 repo — triés par ⭐
Rechercher sur GitHub ↗
May Android security updates patch 4 zero-days exploited in the wild
BleepingComputer
May 19, 2021
Qualys Response to CISA Alert: Binding Operational Directive 22-01
Qualys
Nov 09, 2021
Signal Intelligence
Confidence
95%
EPSS
3.62%
Mentions
3
Last Seen
Nov 09, 2021
CNA Information
Analyst Note
Auto-imported from Google Project Zero — confirmed zero-day by definition.
Triage Info
Decided atMar 05, 2026