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Critical9.8Sophos Exploited CISA KEV

Critical [CVE-2022-1040] Sophos Firewall: authentication bypass vulnerability in the User Portal and Webadmin

This critical-severity Sophos advisory covers CVE-2022-1040 affecting Sophos Firewall.

CVE-2022-1040 Published Mar 25, 2022Updated by vendor Jun 17, 2026
Affected products & platforms
SophosSophos Firewall (XGS/SFOS)
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Summary

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.

CISA Known Exploited Vulnerability

Listed:
Mar 31, 2022 · federal remediation due Apr 21, 2022
Required action:
Apply updates per vendor instructions.
Ransomware use:
Unknown

KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Mitigation

The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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