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Full vulnerability report · 2022
CVE-2021-22817High confidence

A CWE-276: Incorrect Default Permissions vulnerability exists that could cause unauthorized access to the base installation directory leading to local privilege escalation

Unknown · Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1)

7.8HighCVSS 3.1
Recommended action
Within 7 days

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

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Medium, lowered one band.downgradedsince 3 Aug 2024

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.20% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1) and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

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-2022-039-06 · CSAF 2.0 · revision 1 · finalSchneider Electric CPCERTHarmony/Magelis iPC Series HMI, Vijeo Designer and Vijeo Designer Basic
3 known affected

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

  • Schneider Electric Harmony/Magelis iPC Series All Versions
  • Schneider Electric Vijeo Designer All Versions prior to V6.2 SP11 Multiple HotFix 4
  • Schneider Electric Vijeo Designer Basic All Versions prior to V1.2.1
Summary
A CWE-276: Incorrect Default Permissions vulnerability exists that could cause unauthorized access to the base installation directory leading to local privilege escalation.
Remediation
Version V6.2 SP11 Multi HotFix 4 of Vijeo Designer includes a fix for this vulnerability and can be updated through the Schneider Electric Software Update (SESU) application. On the engineering workstation, update to V6.2 SP11 Multi HotFix 4 (or above) of Vijeo Designer. In order to complete the update, connect to Harmony iPC Series HMI and download the project file using Vijeo Designer V6.2 SP11 Multi HotFix 4.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

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-2021-9952

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
01

What, why and how

A CWE-276: Incorrect Default Permissions vulnerability exists that could cause unauthorized access to the base installation directory leading to local privilege escalation. Affected Product: Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1)

What

A CWE-276: Incorrect Default Permissions vulnerability exists that could cause unauthorized access to the base installation directory leading to local privilege escalation. Affected Product: Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1)

Why

During installation, installed file permissions are set to allow anyone to modify those files.

How

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

What

A CWE-276: Incorrect Default Permissions vulnerability exists that could cause unauthorized access to the base installation directory leading to local privilege escalation. Affected Product: Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1)

Why

During installation, installed file permissions are set to allow anyone to modify those files.

How

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

02

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 → Incorrect Default Permissions → 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-276 ↗

CWE-276: Incorrect Default Permissions. During installation, installed file permissions are set to allow anyone to modify those files.

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-276
A

Official authority intelligence

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

Cyber Security Agency of Singapore · English · CSA-SB-20220216Security Bulletin 16 Feb 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 16 Feb 2022, published on 16 February 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-123Multiples vulnérabilités dans les produits Schneider

nload.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-039-03 Bulletin de sécurité Schneider SEVD-2022-039-04 du 08 février 2022 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-039-04 Bulletin de sécurité Schneider SEVD-2022-039-05 du 08 février 2022 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-039-05 Bulletin de sécurité Schneider SEVD-2022-039-06 du 08 février 2022 https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-039-06 Référence CVE CVE-2020-28895 https://www.cve.org/CVERecord?id=CVE-2020-28895 Référence CVE CVE-2020-35198 https://www.cve.org/CVERecord?id=CVE-2020-35198 Référence CVE CVE-2021-22817 https://www.cve.org/CVERecord?id=CVE-2021-22817 Référence CVE CVE-2021-29240 https://www.cve.org/CVERecord?id=CVE-2021-29240 Référence CVE CVE-2022-22807 https://www.cve.org/CVERecord?id=CVE-2022-22807 Référence CVE CVE-2022-22808 https://www.cve.org/CVERecord?id=CVE-2022-22808 Référence CVE CVE-2022-22809 https://www.cve.org/CVERecord?id=CVE-2022-22809 Référence CVE CVE-2022-22810 https://www.cve.org/CVERecord?id=CVE-2022-22810 Référence CVE CVE-2022-22811 https://www.cve.org/CVERecord?id=CVE-2022-22811 Référence CVE CVE-2022-22812 https://www.cve.org/CVERecord?id=CVE-2022-22812 Référence CVE CVE-2022-22813 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-005411複数の Schneider Electric 製品における不適切なデフォルトパーミッションに関する脆弱性

Harmony/Magelis iPC Series、Vijeo Designer、Vijeo Designer Basic には、不適切なデフォルトパーミッションに関する脆弱性が存在します。

Official advisory ↗
03

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
Fixed
Action
Version V6.2 SP11 Multi HotFix 4 of Vijeo Designer includes a fix for this vulnerability and can be updated through the Schneider Electric Software Update (SESU) application. On the engineering workstation, update to V6.2 SP11 Multi HotFix 4 (or above) of Vijeo Designer. In order to complete the update, connect to Harmony iPC Series HMI and download the project file using Vijeo Designer V6.2 SP11 Multi HotFix 4.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 9 Feb 2022 · Last source change 3 Aug 2024, 18:51 UTC · CWE-276 · Incorrect Default Permissions

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-2021-9952
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1) · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    Harmony/Magelis iPC Series (All Versions), Vijeo Designer (All Versions prior to V6.2 SP11 Multiple HotFix 4), Vijeo Designer Basic (All Versions prior to V1.2.1) · Fixed: Version V6.2 SP11 Multi HotFix 4 of Vijeo Designer includes a fix for this vulnerability and can be updated through the Schneider Electric Software Update (SESU) application. On the engineering workstation, update to V6.2 SP11 Multi HotFix 4 (or above) of Vijeo Designer. In order to complete the update, connect to Harmony iPC Series HMI and download the project file using Vijeo Designer V6.2 SP11 Multi HotFix 4.
    Schneider Electric CPCERT ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Schneider Electric CPCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2021-9952↗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.
Free version - for non-commercial use only.CVE-2021-22817 · cve.blacktree.nl