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Full vulnerability report · 2021
CVE-2021-22775High confidence

n/a GP-Pro EX V4.09.250 and prior — Uncontrolled Search Path Element

Unknown · GP-Pro EX V4.09.250 and prior

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:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.33% 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 GP-Pro EX V4.09.250 and prior 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: Within 30 daysRemediation target: Within 180 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-2021-222-03 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTPro-face GP-Pro EX
1 known affected

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

  • Schneider Electric GP-Pro EX V4.09.250 and prior
Summary
A CWE-427: Uncontrolled Search Path Element vulnerability exists that could cause local code execution with elevated privileges when installing the software.
Remediation
V4.09.300 of the Pro-face GP-Pro EX product includes a fix for this vulnerability and is available for download here: https://www.proface.com/en/download/trial/gpproex/v40 In addition to the remediation provided above, customers should also apply the following mitigations to reduce the risk of exploit: •Restrict access to the system to only authorized users •Ensure that proper access rights are granted based on the least privilege principle tolimit access to the installation files to only authorized users. •Compute a hash of the GP-Pro EX ISO files downloaded and check the consistency ofthis hash with the one available at the download location on Pro-face website.
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-2021-9910

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-427: Uncontrolled Search Path Element vulnerability exists in GP-Pro EX,V4.09.250 and prior, that could cause local code execution with elevated privileges when installing the software.

What

A CWE-427: Uncontrolled Search Path Element vulnerability exists in GP-Pro EX,V4.09.250 and prior, that could cause local code execution with elevated privileges when installing the software.

Why

The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. If successful, the issue may gain additional privileges.

What

A CWE-427: Uncontrolled Search Path Element vulnerability exists in GP-Pro EX,V4.09.250 and prior, that could cause local code execution with elevated privileges when installing the software.

Why

The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.

How

An attacker operating through local access may attempt exploitation without authentication after a user interaction. 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 → Uncontrolled Search Path Element → gain additional privileges
Attack surface
Local
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
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-427 ↗

CWE-427: Uncontrolled Search Path Element. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.

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:N/UI:R/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.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.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.
UnauthenticatedPrivilege escalationCWE-427
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-20210908Security Bulletin 08 Sep 2021

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 08 Sep 2021, published on 8 September 2021. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-622Multiples vulnérabilités dans les produits Schneider Electric

d?id=CVE-2021-21814 Référence CVE CVE-2021-21815 https://www.cve.org/CVERecord?id=CVE-2021-21815 Référence CVE CVE-2021-21825 https://www.cve.org/CVERecord?id=CVE-2021-21825 Référence CVE CVE-2021-21826 https://www.cve.org/CVERecord?id=CVE-2021-21826 Référence CVE CVE-2021-21827 https://www.cve.org/CVERecord?id=CVE-2021-21827 Référence CVE CVE-2021-21828 https://www.cve.org/CVERecord?id=CVE-2021-21828 Référence CVE CVE-2021-21829 https://www.cve.org/CVERecord?id=CVE-2021-21829 Référence CVE CVE-2021-21830 https://www.cve.org/CVERecord?id=CVE-2021-21830 Référence CVE CVE-2021-22704 https://www.cve.org/CVERecord?id=CVE-2021-22704 Référence CVE CVE-2021-22775 https://www.cve.org/CVERecord?id=CVE-2021-22775 Référence CVE CVE-2021-22789 https://www.cve.org/CVERecord?id=CVE-2021-22789 Référence CVE CVE-2021-22790 https://www.cve.org/CVERecord?id=CVE-2021-22790 Référence CVE CVE-2021-22791 https://www.cve.org/CVERecord?id=CVE-2021-22791 Référence CVE CVE-2021-22792 https://www.cve.org/CVERecord?id=CVE-2021-22792 Référence CVE CVE-2021-22793 https://www.cve.org/CVERecord?id=CVE-2021-22793 Référence CVE CVE-2021-30186 https://www.cve.org/CVERecord?id=CVE-2021-30186 Référence CVE CVE-2021-30188 https://www.cve.org/CVERecord?id=CVE-2021-30188 Référence CVE CVE-2021-30195 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-011369GP-Pro EX における制御されていない検索パスの要素に関する脆弱性

GP-Pro EX には、制御されていない検索パスの要素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
Schneider Electric GP-Pro EX V4.09.250 and prior
Fixed
Schneider Electric GP-Pro EX V4.09.300
Action
V4.09.300 of the Pro-face GP-Pro EX product includes a fix for this vulnerability and is available for download here: https://www.proface.com/en/download/trial/gpproex/v40 In addition to the remediation provided above, customers should also apply the following mitigations to reduce the risk of exploit: •Restrict access to the system to only authorized users •Ensure that proper access rights are granted based on the least privilege principle tolimit access to the installation files to only authorized users. •Compute a hash of the GP-Pro EX ISO files downloaded and check the consistency ofthis hash with the one available at the download location on Pro-face website.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 2 Sept 2021 · Last source change 3 Aug 2024, 18:51 UTC · CWE-427 · Uncontrolled Search Path Element

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-2021-9910
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
    GP-Pro EX V4.09.250 and prior · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    GP-Pro EX V4.09.250 and prior · Fixed: V4.09.300 of the Pro-face GP-Pro EX product includes a fix for this vulnerability and is available for download here: https://www.proface.com/en/download/trial/gpproex/v40 In addition to the remediation provided above, customers should also apply the following mitigations to reduce the risk of exploit: •Restrict access to the system to only authorized users •Ensure that proper access rights are granted based on the least privilege principle tolimit access to the installation files to only authorized users. •Compute a hash of the GP-Pro EX ISO files downloaded and check the consistency ofthis hash with the one available at the download location on Pro-face website.
    Schneider Electric CPCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2021-9910↗Schneider Electric CPCERT security advisory↗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-2021-22775 · cve.blacktree.nl