What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2023-11-16
• EPSS: 100.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-04 · updated 2026-06-17
• Weakness: CWE-77

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.

Affected products

• Sophos Web Appliance: before 4.3.10.4 — fixed in 4.3.10.4

How to fix

Upgrade to a fixed version: Sophos Web Appliance 4.3.10.4. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/172016/Sophos-Web-Appliance-4.3.10.4-Command-Injection.html
• https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce
• http://packetstormsecurity.com/files/172016/Sophos-Web-Appliance-4.3.10.4-Command-Injection.html
• https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1671

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