CVE-2023-1671
A pre-auth command injection vulnerability in the warn-proceed handler of Sophos Web Appliance...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2023-1671- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
EUVDEUVD-2023-23899
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.
- Record
EUVD-2023-23899- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5f37-m2hf-qphr
A pre-auth command injection vulnerability in the warn-proceed handler of Sophos Web Appliance...
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.
- Record
GHSA-5f37-m2hf-qphr- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
CISA KEV No score
Sophos Web Appliance Command Injection Vulnerability
Sophos Web Appliance contains a command injection vulnerability in the warn-proceed handler that allows for remote code execution.
- Record
CVE-2023-1671- Weakness
- CWE-77
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2023-1671- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-77
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | ohnonoyesyes/CVE-2023-1671 | 2023-04-23 |
| PoC in GitHub | W01fh4cker/CVE-2023-1671-POC | 2023-04-24 |
| Exploit-DB | Sophos Web Appliance 4.3.10.4 - Pre-auth command injection | 2023-04-25 |
| PoC in GitHub | csffs/cve-2023-1671 | 2023-05-17 |
| Nuclei | Sophos Web Appliance - Remote Code Execution |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, Exploit-DB, GitHub Advisories, CISA KEV, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-1671 is a critical vulnerability (CVSS 9.8) in Sophos Web Appliance, published April 4, 2023. CISA lists it as known to be exploited, since November 16, 2023. EUVD reports exploitation since November 16, 2023. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 100.0%, the 99th percentile. No source names a fixed version.
References
sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce
packetstormsecurity.com/files/172016/Sophos-Web-Appliance-4.3.10.4-Command-Injection.html
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-1671
nvd.nist.gov/vuln/detail/CVE-2023-1671
github.com/advisories/GHSA-5f37-m2hf-qphr