Sophos

CVE-2022-3980: An XML External Entity (XEE) vulnerability allows server-side request forgery (SSRF) and potential code execution in…

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 13 Nov 2023. It cites 527 public reports, the first from 13 Nov 2023. VulnCheck's own honeypots also recorded exploitation attempts.

How likely is exploitation in the next 30 days?

9.8%

EPSS score, percentile 95.5 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

9.8 Critical

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

5.0.0
9.7.4 and earlier

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

An XML External Entity (XEE) vulnerability allows server-side request forgery (SSRF) and potential code execution in Sophos Mobile managed on-premises between versions 5.0.0 and 9.7.4.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (1 product)

Sophos Sophos Mobile managed on-premises
Status	Versions
Affected	5.0.0
Affected	9.7.4 and earlier

Source: CVE List, as of 30 Oct 2026. About the data.

Weakness

CWE-611

CWE-611: Improper Restriction of XML External Entity Reference

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

Date	Event
16 Nov 2022	CVE record published
29 Apr 2025	CVE record last updated

References

sophos.com

Known exploited Sophos vulnerabilities

CVE-2020-15069: Sophos XG Firewall Buffer Overflow Vulnerability (added 6 Feb 2025)
CVE-2020-29574: CyberoamOS (CROS) SQL Injection Vulnerability (added 6 Feb 2025)
CVE-2023-1671: Sophos Web Appliance Command Injection Vulnerability (added 16 Nov 2023)
CVE-2022-3236: Sophos Firewall Code Injection Vulnerability (added 23 Sep 2022)
CVE-2022-1040: Sophos Firewall Authentication Bypass Vulnerability (added 31 Mar 2022)