CVE-2023-1671
Critical 9.8 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Sophos Web Appliance Command Injection Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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.
Metrics
- CVSS 3.1
-
9.8 (CRITICAL)
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 100% (percentile: 100) as of 2 November 2026
- CWE
- CWE-77
Affected products
sophos: web appliance
References
- https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce Vendor Advisory
- https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce Vendor Advisory
- http://packetstormsecurity.com/files/172016/Sophos-Web-Appliance-4.3.10.4-Comma… ExploitThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/172016/Sophos-Web-Appliance-4.3.10.4-Comma… ExploitThird Party AdvisoryVDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023… US Government Resource