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CVE-2020-12271

Published: Apr 27, 2020Updated: Nov 7, 2025 Sources: CVE List NVD BDUCWE-89
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
43.1%
Top 1.4%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
1 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

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)

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-89

Affected Products

sfossophosSecurity Products
SFOSSophos Ltd.
Mixed
Networking Infrastructure / firewall
n/an/a
sophoscommercialGBSecurity Productsaka sophos ltd.
sophos ltd.commercialNetworking Infrastructureaka sfos, sophos firewall, sophos web appliance (swa)

Attack Graph

Products CVE Techniques Tactics

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Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:May 3, 2022
Ransomware:Known ransomware use

Required action: Apply updates per vendor instructions.

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://community.sophos.com/kb/en-us/135412
community.sophos.com
https://cwe.mitre.org/data/definitions/89.html
cwe.mitre.org
https://news.sophos.com/en-us/2020/04/26/asnarok/
news.sophos.com
and 3 more references View all →

Timeline

Published
Apr 27, 2020
Added to CISA KEV
Nov 3, 2021
Last Updated
Nov 7, 2025

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