CVE-2021-1048
ENISA EUVD: EUVD-2021-6515 ↗
Exploited in the Wild
✓ Confirmed 0-Day
★ Google Project Zero
Triaged: March 5, 2026
3 articles
EPSS Score
Source: FIRST.org · 2026-05-24
0.91%
probability
This CVE has a 0.91% probability
of being exploited in the next 30 days.
0%
Top 76.2th percentile of all CVEs
100%
CVSS v3.1
Source: NVD7.8
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Project ZeroUse-after-free in ep_loop_check_proc
Affected Products
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
Nov. 6, 2021
Reported by
Clément Lecigne and Christian Resell from Google's Threat Analysis Group
Root Cause Analysis
https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html
Android November patch fixes actively exploited kernel bug
BleepingComputer
Nov 02, 2021
Google: Predator spyware infected Android devices using zero-days
BleepingComputer
May 22, 2022
Signal Intelligence
Confidence
95%
EPSS
0.91%
CVSS v3.1
7.8
Mentions
3
Last Seen
May 22, 2022
CNA Information
Analyst Note
Auto-imported from Google Project Zero — confirmed zero-day by definition.
Threat Actors 1
PassCV
apt_group
Information theft and espionage
🇨🇳 CN
Triage Info
Decided atMar 05, 2026