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Sophos: actively exploited vulnerabilities

7 vulnerabilities in Sophos products (Firewall (SFOS, ex-XG), CyberoamOS (Cyberoam), SG UTM…) are in CISA’s catalog of exploited vulnerabilities. Last added: February 6, 2025.

Sophos security advisories

The brand’s general security advisories page, not the advisory for a specific vulnerability (address checked September 28, 2026).

By category

Add just one Sophos category to your radar, or open its page.

A high count also reflects how widely a product is deployed and how much attackers care about it: it is not a security rating.

Affected products

Follow a single Sophos product (Firewall (SFOS, ex-XG), CyberoamOS (Cyberoam)…) rather than the whole brand.

  • Firewall (SFOS, ex-XG)4 vulnerabilities, Firewalls and VPNs
  • CyberoamOS (Cyberoam)1 vulnerability, Firewalls and VPNs
  • SG UTM1 vulnerability, Firewalls and VPNs
  • Web Appliance1 vulnerability, Security products

Name used by CISA: Sophos. Product families: indicative classification by this site.

Patch first

In the order of the main list (Patch first): recent additions first, then the most severe. The number is the rank within this Sophos list.

  1. Rank 1

    Sophos Firewall (SFOS, ex-XG)CVE-2020-15069

    Sophos XG Firewall Buffer Overflow Vulnerability

    CVE from 2020, added in 2025

    CVSS severity 9.8critical

    Added Feb 6, 2025

  2. Rank 2

    Sophos Web ApplianceCVE-2023-1671

    Sophos Web Appliance Command Injection Vulnerability

    CVSS severity 9.8critical

    Added Nov 16, 2023

  3. Rank 3

    Sophos Firewall (SFOS, ex-XG)CVE-2022-3236

    Sophos Firewall Code Injection Vulnerability

    CVSS severity 9.8critical

    Added Sep 23, 2022

  4. Rank 4

    Sophos Firewall (SFOS, ex-XG)CVE-2022-1040

    Sophos Firewall Authentication Bypass Vulnerability

    CVSS severity 9.8critical

    Added Mar 31, 2022

  5. Rank 5

    Sophos SG UTMCVE-2020-25223

    Sophos SG UTM Remote Code Execution Vulnerability

    CVE from 2020, added in 2022

    CVSS severity 9.8critical

    Added Mar 25, 2022

  6. Rank 6

    Sophos Firewall (SFOS, ex-XG)CVE-2020-12271

    Sophos SFOS SQL Injection Vulnerability

    Ransomware

    CVSS severity 9.8critical

    Added Nov 3, 2021

End of life: remove

These products are no longer supported: no patch is coming. Remove them or isolate them from the network.

  1. Sophos CyberoamOS (Cyberoam)CVE-2020-29574

    CyberoamOS (CROS) SQL Injection Vulnerability

    RansomwareEnd of lifeCVE from 2020, added in 2025

    CVSS severity 9.8critical

    Added Feb 6, 2025

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Indicative classification, based on the vendor and product names given by CISA. How products are classified.