CVE-2022-1040

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.998 · 100 %ileexploit · PoCEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 8 exploits · PoC

Likely / severe?

99.8% (100th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-03-31remediate by 2022-04-21

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-26

Sophos Firewall Authentication Bypass Vulnerability

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · security-alert@sophos.comexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287US

ATT&CK techniques

ATT&CK techniques this enables or maps to.

exploits (8)

Public proof-of-concept and weaponised exploit code.

EDB-51006Sophos XG115w Firewall 17.0.10 MR-10 - Authentication BypassPoC · exploit_db
Cyb3rEnthusiast/CVE-2022-1040New exploitation of 2020 Sophos vulnPoC · poc_in_github
Keith-amateur/cve-2022-1040Save the trouble to open the burpsuite...PoC · poc_in_github
jackson5sec/CVE-2022-1040This vulnerability allows an attacker to gain unauthorized access to the firewall management space by bypassing authenticationPoC · poc_in_github
jam620/Sophos-VulnerabilityCVE-2022-1040PoC · poc_in_github
killvxk/CVE-2022-1040may the poc with youPoC · poc_in_github

affected products (4)

Products and version ranges known to be affected.

Sophos Sophos Firewall≤ unspecified ≤18.5 MR3enisa_euvdEU
Sophos Ltd. SFOS≤ 18.5 MR4 (18.5.4)fstec_bduRU
Sophos Ltd. SFOS≤ 19.0 GAfstec_bduRU
sophos sfos≤ 18.5.3nvdUScpe:2.3:o:sophos:sfos:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2022-03-25modified 2026-06-17

references (14)

External citations — patches, advisories, analysis.

scry

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