CVE-2020-12271Sophos SFOS SQL Injection Vulnerability

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)

9.8 CRITICALEPSS 43.33%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 02:51 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Apr 27, 2020
Assigner: mitre

Affected

sfos (sophos)

Versions: 17.0 · 17.1

All affected versions →

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · Nov 3, 2021
KEV due date: May 3, 2022
Ransomware use: Known
SSVC: Exploitation active · Automatable yes · Impact total

EPSS · FIRST, scored Nov 8

43.33%chance of exploitation in 30 days

Higher than 98.73% of CVEs

CVSS 3.1 · NVD

9.8Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.0 · mitre (CNA)

10.0Critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Changed
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 3.0 · mitre (CNA)

10.0Critical

CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N

Attack complexity: Low
Attack vector: Network
Availability impact: High
Confidentiality impact: High
Integrity impact: High
Privileges required: None
Scope: Changed
User interaction: None

CVSS 2.0 · NVD

7.5High

AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack vector: Network
Attack complexity: Low
Authentication: None
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0	CRITICAL	3.0mitre (CNA)	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0	CRITICAL	3.0mitre (CNA)	CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
7.5	HIGH	2.0NVD	AV:N/AC:L/Au:N/C:P/I:P/A:P

CISA required action

⚡ Known exploited · remediation due May 3, 2022

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Details

CVE ID: CVE-2020-12271
Status: Analyzed
Assigner (CNA): mitre
Published: Apr 27, 2020
Last modified: 2026-06-17 02:51 UTC
Weaknesses: CWE-89

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 10:28 UTC.