CVE-2023-1671
Sophos Web Appliance Command Injection Vulnerability
- Published
- Apr 4, 2023
- Updated
- Oct 21, 2025
- Assigning CNA
- Sophos
- Evidence observed
- Apr 25, 2023
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 100.0%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
http/cves/2023/CVE-2023-1671.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: word($.matchers[*].type)
- oob: interactsh_reference($.template_text)
- cve-2023-1671Exploit
Python-based exploit for CVE-2023-1671 with test and exploitation functions. Tests vulnerability via DNS ping, then executes arbitrary commands on vulnerable servers through command injection.
- CVE-2023-1671-POCExploit
CVE-2023-1671-POC, based on dnslog platform
Pre-Auth RCE in Sophos Web Appliance
Behnam Abasi Vanda · php · Apr 25, 2023
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