Security readout for executives and security teams
Plain-English summary
CVE-2022-3713 is a high-severity code injection issue in the WiFi controller of Sophos Firewall. An attacker on an adjacent network could execute code on affected firewalls running releases older than 19.5 GA, creating serious confidentiality, integrity, and availability risk.
Executive priority
Prioritize remediation in the next standard security maintenance window, sooner for WiFi-enabled or high-value sites. The vulnerability can enable code execution without credentials, but available evidence does not show confirmed active exploitation.
Technical view
The issue is classified as CWE-94 code injection. The CVSS 3.1 vector is AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, meaning adjacent access is required, but no credentials or user interaction are needed. Affected software is Sophos Firewall before version 19.5 GA.
Likely exposure
Exposure is most likely where Sophos Firewall appliances run versions older than 19.5 GA and have WiFi controller functionality reachable from adjacent networks. The source bundle does not provide CPEs, configuration prerequisites, or detailed network-path requirements.
Exploitation context
The bundle does not cite active exploitation, and the CVE is not marked as CISA KEV. Treat this as a serious adjacency-risk vulnerability because successful exploitation could lead to code execution with high impact.
Researcher notes
The public bundle is sparse. It establishes product, version threshold, CWE, CVSS, and adjacent attack vector, but does not include proof-of-concept status, detailed exploit conditions, or specific workaround text beyond the Sophos advisory reference.
Mitigation direction
- Upgrade Sophos Firewall appliances older than 19.5 GA to 19.5 GA or later.
- Review the Sophos advisory for supported upgrade and hotfix guidance.
- Prioritize internet-edge and WiFi-enabled firewall deployments first.
- Restrict adjacent network access to firewall management and WiFi controller surfaces where possible.
Validation and detection
- Inventory all Sophos Firewall versions and identify systems older than 19.5 GA.
- Confirm whether WiFi controller functionality is enabled on each affected appliance.
- Review network segmentation around firewall-adjacent wireless or local networks.
- Check vendor advisory status before closing the finding.
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-2022-3713 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:A/AC:L/PR:N/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.