Reference page — cumulative record through Monday, October 5, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-1671

CVE-2023-1671CRITICAL

Sophos Web Appliance

  AV  AC  PR  UI  S  C  I  A   CVSS     EPSS    %ile   KEV
   N   L   N   N  U  H  H  H    9.8   1.0000   100.0   YES

AFFECTED
  Product               Versions       Fixed
  Sophos Web Appliance  unspecified –  —

TIMELINE
  Mar 28  Reserved by Sophos
  Apr 4   Published (CNA: Sophos)
  Nov 16  Added to CISA KEV, remediation due 2023-12-07

CWE-77 · CNA: Sophos · CVSS v3.1 · 3 references · KEV due December 7, 2023

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
March 28, 2023	Reserved	Reserved by Sophos
April 4, 2023	Published	Published (CNA: Sophos)
November 16, 2023	KEV ADDED	Added to CISA KEV, remediation due 2023-12-07

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Sophos	Sophos Web Appliance	—	unspecified	—

Weaknesses

CWE-77

References (3)

Authoritative record: CVE-2023-1671 at cve.org

Vendors: sophos

Weaknesses: CWE-77

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-1671 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 5, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.