CVE-2020-12271
9.8 · CRITICAL Actively ExploitedOverview
CVE-2020-12271 is a critical-severity vulnerability affecting sophos sfos. It was published on April 27, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A SQL injection issue was found in SFOS 17.0, 17.1, 17.5, and 18.0 before 2020-04-25 on Sophos XG Firewall devices, as exploited in the wild in April 2020. This affected devices configured with either the administration (HTTPS) service or the User Portal exposed on the WAN zone. A successful attack may have caused remote code execution that exfiltrated usernames and hashed passwords for the local device admin(s), portal admins, and user accounts used for remote access (but not external Active Directory or LDAP passwords)
Remediation
Check the references section for vendor advisories and patches from sophos. Update sfos to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|
References
Frequently Asked Questions
What is CVE-2020-12271?
CVE-2020-12271 is a critical-severity vulnerability affecting sophos sfos. It was published on April 27, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2020-12271?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-12271?
Check the references section for vendor advisories and patches from sophos. Update sfos to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-12271?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-12271 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related CRITICAL CVEs from 2020
View all →In ApexPro Telemetry Server, Versions 4.2 and prior, CARESCAPE Telemetry Server v4.2 & prior, Clinic
In ApexPro Telemetry Server, Versions 4.2 and prior, CARESCAPE Telemetry Server v4.2 & prior, Clinic
In ApexPro Telemetry Server Versions 4.2 and prior, CARESCAPE Telemetry Server v4.2 & prior, Clinica
In ApexPro Telemetry Server Versions 4.2 and prior, CARESCAPE Telemetry Server v4.2 & prior, Clinica
Missing Authentication for Critical Function in the Bosch Video Streaming Gateway (VSG) allows an un
Deserialization of Untrusted Data in the BVMS Mobile Video Service (BVMS MVS) allows an unauthentica
NaCl in 2015 allowed the CLFLUSH instruction, making rowhammer attacks possible.
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.
Apache Commons Configuration uses a third-party library to parse YAML files which by default allows
UltraLog Express device management interface does not properly filter user inputted string in some s
A Use of Hard-coded Credentials vulnerability exists in the NFX250 Series for the vSRX Virtual Netwo
Beaker before 0.8.9 allows a sandbox escape, enabling system access and code execution. This occurs