Security readout for executives and security teams
Plain-English summary
This vulnerability affects B&R Industrial Automation engineering software and can let a low-privileged local user escalate privileges through incorrectly assigned service permissions. The business risk is highest on engineering workstations or systems where Automation Studio or NET/PVI is installed and accessible to non-admin users.
Executive priority
Treat as a high-priority engineering workstation remediation item, not an internet-wide emergency. Prioritize plants or support teams where shared access increases escalation risk.
Technical view
CVE-2020-24681 is a CWE-732 incorrect permission assignment issue affecting B&R Automation Studio and NET/PVI. CVSS 3.1 is 8.2 with local access, low complexity, low privileges, user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to hosts running affected B&R Automation Studio or NET/PVI versions, especially shared engineering workstations or operational support systems with local user access.
Exploitation context
The source bundle does not identify active exploitation, and KEV status is false. The CVSS vector indicates local privilege escalation rather than unauthenticated remote compromise.
Researcher notes
Evidence supports local privilege escalation through service permission misconfiguration. Provided data is incomplete for NET/PVI fixed-version boundaries, so validation should reference the vendor advisory before closing findings.
Mitigation direction
- Inventory systems running B&R Automation Studio and NET/PVI.
- Upgrade Automation Studio 4.7 before 4.7.7 SP, 4.8 before 4.8.6 SP, and 4.9 before 4.9.4 SP.
- Check B&R advisory guidance for NET/PVI-specific fixed versions and remediation details.
- Restrict local interactive access to engineering hosts until patched.
- Review local service permissions on affected hosts for unexpected broad write access.
Validation and detection
- Confirm installed Automation Studio and NET/PVI versions on engineering systems.
- Compare Automation Studio versions against the affected ranges in the CVE record.
- Verify remediation status against the B&R advisory, especially for NET/PVI.
- Check whether low-privileged users can access affected engineering workstations.
- Document compensating controls where upgrades cannot be completed immediately.
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-732: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-24681 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
- 8.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/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:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H1.56Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/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.
Incorrect Permission Assignment for Critical Resource
Incorrect Permission Assignment for Critical Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.