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Full vulnerability report · 2025
CVE-2025-5296High confidence

Schneider Electric SESU — Improper Link Resolution Before File Access ('Link Following')

Schneider Electric · SESU

7.0HighCVSS 4.0
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-2025-224-03 · CSAF 2.0 · revision 2.0.0 · finalSchneider Electric CPCERTSchneider Electric Software Update
26 known affected

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

  • Schneider Electric SESU Versions prior to v3.0.12
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric BESS ANSI
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Easergy MiCOM P30
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Easergy MiCOM P40
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Easergy Studio
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Automation Expert
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Harmony XB5S Soft
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric eXLhoist Configuration Software
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Automation Device Maintenance
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert Basic
  • Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Automation Expert Motion
Summary
CWE-59: Improper Link Resolution Before File Access ('Link Following') vulnerability exists that could cause arbitrary data to be written to protected locations, potentially leading to escalation of privilege, arbitrary file corruption, exposure of application and system information or persistent denial of service when a low-privileged attacker tampers with the installation folder.
Remediation
Version 3.0.12 of SESU includes a fix for this vulnerability and is available for download here: https://www.seupdate.schneiderelectric.com/download/SystemConsistency/Soft wareUpdate/SESU_latest_version/SESU_latest _setup_sfx.exe Follow the installation instructions. If a predecessor version of SESU is already installed, then the update to V3.0.12 will be done automatically as a critical update in the background depending on the “automatic” update configuration.
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2025-28481

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

CWE-59: Improper Link Resolution Before File Access ('Link Following') vulnerability exists that could cause arbitrary data to be written to protected locations, potentially leading to escalation of privilege, arbitrary file corruption, exposure of application and system information or persistent denial of service when a low-privileged attacker tampers with the installation folder.

What

CWE-59: Improper Link Resolution Before File Access ('Link Following') vulnerability exists that could cause arbitrary data to be written to protected locations, potentially leading to escalation of privilege, arbitrary file corruption, exposure of application and system information or persistent denial of service when a low-privileged attacker tampers with the installation folder.

Why

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

CWE-59: Improper Link Resolution Before File Access ('Link Following') vulnerability exists that could cause arbitrary data to be written to protected locations, potentially leading to escalation of privilege, arbitrary file corruption, exposure of application and system information or persistent denial of service when a low-privileged attacker tampers with the installation folder.

Why

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

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 → Improper Link Resolution Before File Access ('Link Following') → disrupt the affected service
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
Not a CVSS 4.0 base metric
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-59 ↗

CWE-59: Improper Link Resolution Before File Access ('Link Following'). The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N

Common Vulnerability Scoring System 4.0: 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.ATNoneAttack requirements: No additional deployment or execution condition is required.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.VCLowVulnerable-system confidentiality: A successful attack can cause a limited loss.VIHighVulnerable-system integrity: A successful attack can cause a major loss.VAHighVulnerable-system availability: A successful attack can cause a major loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
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.
Denial of serviceCWE-59
A

Official authority intelligence

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

CERT-FR · French · CERTFR-2025-AVI-0676Multiples vulnérabilités dans les produits Schneider Electric

De multiples vulnérabilités ont été découvertes dans les produits Schneider Electric. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.

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 SESU Versions prior to v3.0.12; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric BESS ANSI; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Easergy MiCOM P30; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Easergy MiCOM P40; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Easergy Studio; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Automation Expert; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric Harmony XB5S Soft; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric eXLhoist Configuration Software; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Automation Device Maintenance; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert Basic; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Automation Expert Motion; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Operator Terminal Expert; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Control Expert; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Process Expert; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Process Expert for AVEVA System Platform; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Architecture Builder; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert HVAC; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Power Operations (EPO); Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Power Commission Desktop (EPC); Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Microgrid Operations Medium; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric EcoStruxure™ Microgrid Flex; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric PowerLogic™ P5; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric PowerLogic™ P7; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric ZelioSoft 2; Schneider Electric SESU Versions prior to v3.0.12 installed on Schneider Electric SoMove
Fixed
Schneider Electric SESU Version 3.0.12; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric BESS ANSI; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric Easergy MiCOM P30; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric Easergy MiCOM P40; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric Easergy Studio; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Automation Expert; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric Harmony XB5S Soft; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric eXLhoist Configuration Software; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Automation Device Maintenance; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert Basic; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Automation Expert Motion; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Operator Terminal Expert; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Control Expert; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Process Expert; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Process Expert for AVEVA System Platform; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Architecture Builder; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Machine Expert HVAC; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Power Operations (EPO); Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Power Commission Desktop (EPC); Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Microgrid Operations Medium; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric EcoStruxure™ Microgrid Flex; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric PowerLogic™ P5; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric PowerLogic™ P7; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric ZelioSoft 2; Schneider Electric SESU Version 3.0.12 installed on Schneider Electric SoMove
Action
Version 3.0.12 of SESU includes a fix for this vulnerability and is available for download here: https://www.seupdate.schneiderelectric.com/download/SystemConsistency/Soft wareUpdate/SESU_latest_version/SESU_latest _setup_sfx.exe Follow the installation instructions. If a predecessor version of SESU is already installed, then the update to V3.0.12 will be done automatically as a critical update in the background depending on the “automatic” update configuration.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 18 Aug 2025 · Last source change 18 Aug 2025, 12:22 UTC · CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVE recordCVE.org · 5.1
CVSS sourceCNA
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-2025-28481
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD not scheduled

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.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2025-28481↗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-2025-5296 · cve.blacktree.nl