How severe is CVE-2023-1671?

CVE-2023-1671 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 100.0% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2023-1671: Sophos Web Appliance Command Injection

CISA Known Exploited Vulnerabilities

Sophos Web Appliance Command Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-11-16

Remediation due

2023-12-07

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

CISA notes
https://www.sophos.com/en-us/security-advisories/sophos-sa-20230404-swa-rce; https://nvd.nist.gov/vuln/detail/CVE-2023-1671

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.

Severity

CVSS 3.1 · CNA9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
Sophos	Sophos Web Appliance	unspecified to <4.3.10.4

References

2 Links

Other references

Record Details

Published

2023-04-04

Last updated

2025-10-21

Assigner (CNA)

Sophos

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.