CVE-2022-1040 (GCVE-0-2022-1040)

Vulnerability from cvelistv5 – Published: 2022-03-25 12:10 – Updated: 2025-10-21 23:15
VLAI CISA Previdian
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 20:24 UTC
CWE
Assigner
Sophos CNA under the mitre root
CNA scorecard – unranked: 2 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Sophos Sophos Firewall Affected: unspecified , ≤ 18.5 MR3 (custom)
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 2b108623-0dfe-4496-977b-b4e1a0ab9be9

Vulnerability ID: CVE-2022-1040

Status: Confirmed

Status Updated: 2022-03-31 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-31
Asserted: 2022-03-31
Scope
Notes: KEV entry: Sophos Firewall Authentication Bypass Vulnerability | Affected: Sophos / Firewall | Description: An authentication bypass vulnerability in User Portal and Webadmin of Sophos Firewall allows for remote code execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-04-21 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2022-1040
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-158
Feed CISA Known Exploited Vulnerabilities Catalog
Product Firewall
Due Date 2022-04-21
Date Added 2022-03-31
Vendorproject Sophos
Vulnerabilityname Sophos Firewall Authentication Bypass Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:27 UTC | Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d57d7f75-2915-4a4e-bd53-898222cb7c81

Vulnerability ID: CVE-2022-1040

Status: Confirmed

Status Updated: 2022-03-31 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-31
Asserted: 2022-03-31
Scope
Notes: KEVIntel entry: An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5... | Affected: Sophos / Sophos Firewall | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5...
Vendor Sophos
Product Sophos Firewall
Added Date 2022-03-31T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.