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Full vulnerability report · 2025
CVE-2025-1070High confidence

CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could render the device inoperable when a malicious file is downloaded

Schneider Electric · ASCO 5310 Single-Channel Remote Annunciator

7.2HighCVSS 4.0
Recommended action
Within 7 days

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

Mitigation 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-2025-042-01 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTASCO 5310 / 5350 Remote Annunciator
2 known affected

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

  • Schneider Electric ASCO 5310 Single-Channel Remote Annunciator All Versions
  • Schneider Electric ASCO 5350 Eight Channel Remote Annunciator All Versions
Summary
CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could render the device inoperable when a malicious file is downloaded.
Remediation
Schneider Electric is establishing a remediation plan for all future versions of ASCO 5310 Single-Channel Remote Annunciator and ASCO 5350 Eight Channel Remote Annunciator that may include a fix for these vulnerabilities. We will update this document when the remediation is available. Until then, customers should immediately apply the following mitigations to reduce the risk of exploit: • Use remote annunciator devices only in a protected environment to minimize network exposure and ensure that they are not accessible from public internet or untrusted networks. • Change default password to help prevent unauthorized access to device settings and information. • Setup network segmentation and implement a firewall to block all unauthorized access to the annunciator port 80/HTTP. • For more details on the ASCO 5310 refer to “Installation Manual | ASCO 5310 ATS Remote Annunciator” which can be found here: https://www.se.com/ww/en/product-range/66129-asco-5310-singlechannelremote-annunciator/-documents • For more details on the ASCO 5350 refer to “Installation Manual | ASCO 5350 ATS Remote Annunciator” which can be found here: https://www.se.com/ww/en/product-range/66130-asco-5350-eight-channelremote-annunciator/-documents To ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric’s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp
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-2025-1986

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.

Mitigation available
01

What, why and how

CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could render the device inoperable when a malicious file is downloaded.

What

CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could render the device inoperable when a malicious file is downloaded.

Why

The upload path does not sufficiently restrict the type, name, location or later execution of attacker-supplied files.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists that could render the device inoperable when a malicious file is downloaded.

Why

The upload path does not sufficiently restrict the type, name, location or later execution of attacker-supplied files.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

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
a network path → Unrestricted Upload of File with Dangerous Type → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
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-434 ↗

CWE-434: Unrestricted Upload of File with Dangerous Type. The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.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.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.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
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkCWE-434
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-20250219Security Bulletin 19 Feb 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 19 Feb 2025, published on 19 February 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
NCSC-NL · Dutch · NCSC-2025-0056Kwetsbaarheden verholpen in Schneider Electric ASCO

De kwetsbaarheden omvatten een kritieke kwetsbaarheid die het mogelijk maakt om kwaadaardige firmware te downloaden zonder integriteitscontroles, wat kan leiden tot onbruikbaarheid van het apparaat. Daarnaast is er een kwetsbaarheid die voortkomt uit het toewijzen van middelen zonder passende limieten, wat de functionaliteit van webservers ernstig kan beïnvloeden. Een andere kwetsbaarheid betreft de overdracht van gevoelige informatie in platte tekst, wat kan resulteren in gegevensblootstelling bij onderschepping van netwerkverkeer. Tot slot is er een kwetsbaarheid die onbeperkte upload van gevaarlijke bestandstypen mogelijk maakt, wat kan leiden tot compromittering van systeemintegriteit en operationele storingen. Voor succesvol misbruik moet de kwaadwillende toegang hebben tot de productie-omgeving. Het is goed gebruik een dergelijke omgeving niet publiek toegankelijk te hebben.

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.
Mitigation available
Affected
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
Schneider Electric is establishing a remediation plan for all future versions of ASCO 5310 Single-Channel Remote Annunciator and ASCO 5350 Eight Channel Remote Annunciator that may include a fix for these vulnerabilities. We will update this document when the remediation is available. Until then, customers should immediately apply the following mitigations to reduce the risk of exploit: • Use remote annunciator devices only in a protected environment to minimize network exposure and ensure that they are not accessible from public internet or untrusted networks. • Change default password to help prevent unauthorized access to device settings and information. • Setup network segmentation and implement a firewall to block all unauthorized access to the annunciator port 80/HTTP. • For more details on the ASCO 5310 refer to “Installation Manual | ASCO 5310 ATS Remote Annunciator” which can be found here: https://www.se.com/ww/en/product-range/66129-asco-5310-singlechannelremote-annunciator/-documents • For more details on the ASCO 5350 refer to “Installation Manual | ASCO 5350 ATS Remote Annunciator” which can be found here: https://www.se.com/ww/en/product-range/66130-asco-5350-eight-channelremote-annunciator/-documents To ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric’s security notification service here: https://www.se.com/en/work/support/cybersecurity/security-notifications.jsp
04

Evidence and provenance

Published 13 Feb 2025 · Last source change 13 Feb 2025, 14:27 UTC · CWE-434 · Unrestricted Upload of File with Dangerous Type

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-2025-1986
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-2025-1986↗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-2025-1070 · cve.blacktree.nl