BlackTreeIndependent security intelligence

Full vulnerability report · 2020

CVE-2020-7544High confidence

n/a EcoStruxureª Operator Terminal Expert runtime (Vijeo XD) — Improper Privilege Management

n/a · EcoStruxureª Operator Terminal Expert runtime (Vijeo XD)

7.8HighCVSS 3.1

Recommended action

Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current

SEVD-2020-315-02 · CSAF 2.0 · revision 2.0.0 · finalSchneider Electric CPCERTEcoStruxure™ Operator Terminal Expert (Vijeo XD), Pro-face BLUE and WinGP runtime

6 known affected

The vendor explicitly identifies these products as affected by this CVE.

Schneider Electric EcoStruxure™ Operator Terminal Expert Runtime installed on Windows PC using legacy BIOS 3.1 Service Pack 1A and prior
Schneider Electric EcoStruxure™ Operator Terminal Expert Runtime installed on Harmony iPC(HMIG3U) using legacy BIOS 3.1 Service Pack 1A and prior
Schneider Electric Pro-face BLUE Runtime installed on Windows PC using legacy BIOS 3.1 Service Pack 1A and prior
Schneider Electric Pro-face BLUE Runtime installed on Pro-face iPC (SP-5B10) using legacy BIOS 3.1 Service Pack 1A and prior
Schneider Electric WinGP installed on Windows PC using legacy BIOS V4.09.120 and prior
Schneider Electric WinGP installed on Pro-face PS4000 & PS5000 series and SP-5B40, SP5B41 using legacy BIOS V4.09.120 and prior

Summary: CWE-269 Improper Privilege Management vulnerability exists that could cause privilege escalation on the workstation when interacting directly with a driver installed by the runtime software of EcoStruxure™ Operator Terminal Expert or Pro-face BLUE or WinGP.
Remediation: • V3.1 Service Pack 1B of the EcoStruxure™ Operator Terminal Expert includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/productrange-download/62621-ecostruxure%E2%84%A2-operator-terminal-expert/#/softwarefirmware-tab o This fix is also available through Schneider Electric Software Update (SESU). Customers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric's Customer Care Center https://www.se.com/ww/en/work/services/field-services/industrial-automation/industrial-cybersecurity/industrial-cybersecurity.jsp or Pro-face's Customer Care Center https://www.proface.com/en/contact if you need assistance removing a patch.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current

ENISA EUVD identifier

EUVD-2020-28669

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state: Present in the current official mapping
Known exploitation: Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score: Not supplied in the stored EUVD record
Advisory evidence: No linked advisory details stored yet

Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

A CWE-269 Improper Privilege Management vulnerability exists in EcoStruxureª Operator Terminal Expert runtime (Vijeo XD) that could cause privilege escalation on the workstation when interacting directly with a driver installed by the runtime software of EcoStruxureª Operator Terminal Expert.

What

Why

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

Why

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → Improper Privilege Management → gain additional privileges
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-269 ↗
CWE-269: Improper Privilege Management. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

Privilege escalationCWE-269

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2020-28669Official EUVD mapping

0 linked advisory records.

Official EUVD record

CERT-FR · French · CERTFR-2020-AVI-726Multiples vulnérabilités dans les produits Schneider Electric

/www.se.com/ww/en/download/document/SEVD-2020-315-05/ Bulletin de sécurité Schneider Electric SEVD-2020-315-06 du 11 novembre 2020 https://www.se.com/ww/en/download/document/SEVD-2020-315-06/ Bulletin de sécurité Schneider Electric SEVD-2020-315-07 du 11 novembre 2020 https://www.se.com/ww/en/download/document/SEVD-2020-315-07/ Référence CVE CVE-2020-28211 https://www.cve.org/CVERecord?id=CVE-2020-28211 Référence CVE CVE-2020-28212 https://www.cve.org/CVERecord?id=CVE-2020-28212 Référence CVE CVE-2020-28213 https://www.cve.org/CVERecord?id=CVE-2020-28213 Référence CVE CVE-2020-7538 https://www.cve.org/CVERecord?id=CVE-2020-7538 Référence CVE CVE-2020-7544 https://www.cve.org/CVERecord?id=CVE-2020-7544 Référence CVE CVE-2020-7550 https://www.cve.org/CVERecord?id=CVE-2020-7550 Référence CVE CVE-2020-7551 https://www.cve.org/CVERecord?id=CVE-2020-7551 Référence CVE CVE-2020-7552 https://www.cve.org/CVERecord?id=CVE-2020-7552 Référence CVE CVE-2020-7553 https://www.cve.org/CVERecord?id=CVE-2020-7553 Référence CVE CVE-2020-7554 https://www.cve.org/CVERecord?id=CVE-2020-7554 Référence CVE CVE-2020-7555 https://www.cve.org/CVERecord?id=CVE-2020-7555 Référence CVE CVE-2020-7556 https://www.cve.org/CVERecord?id=CVE-2020-7556 Référence CVE CVE-2020-7557 https://www.cve.org/CVERecord?id=CVE-2020-7557 Ré

Official advisory

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: Schneider Electric EcoStruxure™ Operator Terminal Expert Runtime installed on Windows PC using legacy BIOS 3.1 Service Pack 1A and prior; Schneider Electric EcoStruxure™ Operator Terminal Expert Runtime installed on Harmony iPC(HMIG3U) using legacy BIOS 3.1 Service Pack 1A and prior; Schneider Electric Pro-face BLUE Runtime installed on Windows PC using legacy BIOS 3.1 Service Pack 1A and prior; Schneider Electric Pro-face BLUE Runtime installed on Pro-face iPC (SP-5B10) using legacy BIOS 3.1 Service Pack 1A and prior; Schneider Electric WinGP installed on Windows PC using legacy BIOS V4.09.120 and prior; Schneider Electric WinGP installed on Pro-face PS4000 & PS5000 series and SP-5B40, SP5B41 using legacy BIOS V4.09.120 and prior
Fixed: Schneider Electric EcoStruxure™ Operator Terminal Expert V3.1 Service Pack 1B; Schneider Electric Pro-face BLUE V3.1 Service Pack 1B; Schneider Electric WinGP V4.09.200
Action: • V3.1 Service Pack 1B of the EcoStruxure™ Operator Terminal Expert includes a fix for this vulnerability and is available for download here: https://www.se.com/ww/en/productrange-download/62621-ecostruxure%E2%84%A2-operator-terminal-expert/#/softwarefirmware-tab o This fix is also available through Schneider Electric Software Update (SESU). Customers should use appropriate patching methodologies when applying these patches to their systems. We strongly recommend the use of back-ups and evaluating the impact of these patches in a Test and Development environment or on an offline infrastructure. Contact Schneider Electric's Customer Care Center https://www.se.com/ww/en/work/services/field-services/industrial-automation/industrial-cybersecurity/industrial-cybersecurity.jsp or Pro-face's Customer Care Center https://www.proface.com/en/contact if you need assistance removing a patch.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 19 Nov 2020 · Last source change 4 Aug 2024, 09:33 UTC · CWE-269 · Improper Privilege Management

CVE recordCVE.org · 5.1

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2020-28669

Product sourceVendor CSAF · Schneider Electric CPCERT

Remediation sourceVendor CSAF · Schneider Electric CPCERT

CWE sourceCNA

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2020-11-19CVE published

2024-08-04Fixed release or patch reference recorded

ENISA EUVD · EUVD-2020-28669↗Vendor CSAF · Schneider Electric CPCERT↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.