CVE-2023-1671 | BDVDB-2026-199129 Detail

SophosSophos Web Appliance

Description#

A pre-auth command injection vulnerability in the warn-proceed handler of Sophos Web Appliance older than version 4.3.10.4 allows execution of arbitrary code.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References#

Exploit#

No public exploit known

History#

Version 12023-04-04Record published in the CVE List.
Version 22025-10-21Most recent update recorded in the CVE List.

Published

Published: 2023-04-04
Last modified: 2025-10-21

Vendor information

Vendor: Sophos
Product: Sophos Web Appliance

All Sophos vulnerabilities

Score

9.8 Critical

EPSS

99.9%, Very High

Estimated chance of exploitation in the next 30 days. EPSS percentile: 100.0.

KEV

Yes

Listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Command Injection

Action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Systems

Vulnerable
< 4.3.10.4
Fixed
4.3.10.4

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.8 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).