ACTIVELY EXPLOITED

CVE-2023-1671: Sophos Web Appliance Command Injection Vulnerability

Facts
VendorSophos
ProductWeb Appliance
Actively exploitedYes
Added to CISA KEV16 Nov 2023
CISA federal deadline7 Dec 2023
Weakness (CWE)CWE-77

Required action (CISA's text)

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

Description (NVD)

Sophos Web Appliance contains a command injection vulnerability in the warn-proceed handler that allows for remote code execution.

SOURCES

Other Sophos flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.