CVE-2022-1040

CVE-2022-1040 is a critical-severity vulnerability in Sophos Sfos with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-03-31).

Key facts

Description

An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5 MR3 and older.

Frequently asked questions

What is CVE-2022-1040?
An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5 MR3 and older.
How severe is CVE-2022-1040?
CVE-2022-1040 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-1040 being actively exploited?
Yes. CVE-2022-1040 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-03-31, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-1040?
CVE-2022-1040 affects Sophos Sfos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-1040?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-1040 have an EU (EUVD) identifier?
Yes. CVE-2022-1040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-24387. It is also flagged as exploited in the EUVD (since 2022-03-31).
When was CVE-2022-1040 published?
CVE-2022-1040 was published on 2022-03-25 and last updated on 2026-06-17.

References

Affected products (1)

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