CVE-2020-12271
ENISA EUVD: EUVD-2020-4584 ↗
Exploited in the Wild
✓ Confirmed 0-Day
★ Google Project Zero
Triaged: March 3, 2026
3 articles
EPSS Score
Source: FIRST.org · 2026-05-24
86.65%
probability
This CVE has a 86.65% probability
of being exploited in the next 30 days.
0%
Top 99.4th percentile of all CVEs
100%
CVSS v3.0
Source: NVD10.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
Description
Project ZeroSQL injection in admin interface/user portal
Affected Products
Attack Intelligence
Google Project Zero
Discovered
April 22, 2020
Patched
April 25, 2020
Reported by
???
Root Cause Analysis
???
US sanctions Chinese firm for hacking firewalls in ransomware attacks
BleepingComputer
Dec 10, 2024
Signal Intelligence
Confidence
92%
EPSS
86.65%
CVSS v3.0
10.0
Mentions
3
Last Seen
Dec 10, 2024
CNA Information
Analyst Note
This critical SQL injection vulnerability (CVSS 10.0) in Sophos XG Firewall was actively exploited in the wild in April 2020 and documented in Google Project Zero, providing strong evidence of confirmation. The vulnerability affected widely-deployed firewall devices with unauthenticated exposure on WAN zones and enabled remote code execution with credential theft, making it a high-impact confirmed threat.
Triage Info
Decided atMar 03, 2026