Security readout for executives and security teams
Plain-English summary
This vulnerability lets an authenticated administrator inject and run code through Sophos Firewall Webadmin on releases older than 19.5 GA. It is serious because successful misuse can compromise confidentiality, integrity, and availability, but the attacker must already have high-privilege admin access.
Executive priority
Prioritize remediation for any Sophos Firewall below 19.5 GA. This is not presented as actively exploited, but firewall compromise has high business impact and admin credential misuse is a realistic enterprise risk.
Technical view
CVE-2022-3696 is a CWE-94 code injection flaw in Sophos Firewall Webadmin before 19.5 GA. The CVSS 3.1 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, meaning network-reachable, low-complexity exploitation after administrator authentication, with high impact across CIA.
Likely exposure
Organizations running Sophos Firewall releases older than 19.5 GA are potentially exposed, especially where Webadmin is reachable by administrator accounts. The source bundle does not provide precise vulnerable build numbers or CPEs beyond the pre-19.5 GA boundary.
Exploitation context
The provided sources do not report known active exploitation, and this CVE is not listed as KEV in the bundle. Risk is mainly from compromised, malicious, or misused administrator credentials rather than unauthenticated internet-scale exploitation.
Researcher notes
Evidence supports a post-authenticated Webadmin code injection with high privileges required. Version detail is incomplete in the bundle beyond older-than-19.5 GA, so avoid broad product claims. Validate exposure through version inventory and Webadmin access review, not exploit testing.
Mitigation direction
- Upgrade Sophos Firewall to version 19.5 GA or later.
- Review the Sophos advisory for any product-specific remediation instructions.
- Restrict Webadmin access to trusted administrative networks where operationally possible.
- Audit administrator accounts and remove unnecessary privileged access.
Validation and detection
- Inventory all Sophos Firewall appliances and record installed firmware versions.
- Confirm no appliance remains on a release older than 19.5 GA.
- Verify Webadmin exposure is limited to intended administrative paths.
- Review admin audit logs for unexpected changes or suspicious privileged activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-3696 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.