NVD / CVE Program· CNA schneider

CVE-2023-27978: A CWE-502: Deserialization of Untrusted Data vulnerability exists in the Dashboard module that could cause an interpretation of malicious…

HighCVSS 7.8 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 33/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 6.4% (FIRST EPSS); higher than 93.8% of all records.
Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A CWE-502: Deserialization of Untrusted Data vulnerability exists in the Dashboard module that could cause an interpretation of malicious payload data, potentially leading to remote code execution when an attacker gets the user to open a malicious file. Affected Products: IGSS Data Server(IGSSdataServer.exe)(V16.0.0.23040 and prior), IGSS Dashboard(DashBoard.exe)(V16.0.0.23040 and prior), Custom Reports(RMS16.dll)(V16.0.0.23040 and prior).

BDU:2023-01474

Published: Mar 21, 2023
Updated: Jun 17, 2026
EPSS: 6.4% · 93th percentile
CWE: CWE-502

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 2 / 30 · 6.4%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.8
CNA · schneider: 7.8; agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
schneider-electric	custom reports	cpe:2.3:a:schneider-electric:custom_reports
schneider-electric	igss dashboard	cpe:2.3:a:schneider-electric:igss_dashboard
schneider-electric	igss data server	cpe:2.3:a:schneider-electric:igss_data_server

Versions reported by the vendor

Affected version ranges reported by the assigning authority (schneider). Independent of NVD's CPE analysis and usually ahead of it.

Schneider Electric Custom Reports (RMS16.dll)
- V and later · up to and including 16.0.0.23040affected
Schneider Electric IGSS Dashboard (DashBoard.exe)
- V and later · up to and including 16.0.0.23040affected
Schneider Electric IGSS Data Server(IGSSdataServer.exe)
- V and later · up to and including 16.0.0.23040affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

schneider-electric custom reportsup to 16.0.0.23040 inclusive
schneider-electric igss dashboardup to 16.0.0.23040 inclusive
schneider-electric igss data serverup to 16.0.0.23040 inclusive

Same product

schneider-electric: all records

Other highest-scoring records for the same primary product.

CVE-2023-27984A CWE-20: Improper Input Validation vulnerability exists in Custom Reports that could cause a macro to be executed, potentially leading to…
35Monitor
CVE-2023-27981A CWE-22: Improper Limitation of a Pathname to a Restricted Directory vulnerability exists in Custom Reports that could cause a remote code…
35Monitor
CVE-2023-27982A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists in the Data Server that could cause manipulation of…
35Monitor

Published before and after this one in the same product

← EarlierCVE-2023-27980Mar 21, 2023 · A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Data Server TCP interface that could allow the creation…
35Monitor
Later →CVE-2023-27977Mar 21, 2023 · A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists in the Data Server that could cause access to delete files…
21Monitor
Later →CVE-2023-27979Mar 21, 2023 · A CWE-345: Insufficient Verification of Data Authenticity vulnerability exists in the Data Server that could allow the renaming of files in…
26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
No account or password is required.
A user must open a link or visit a page.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-502 · Deserialization of Untrusted Data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-primary

Root cause

Data received over the network is deserialized into the language’s native object format without verifying its source. Code paths inside the object can be triggered during deserialization.

The bug in code

The whole CWE-502 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

python

1payload = sock.recv(65536)
2job = pickle.loads(payload)

Fixed

python

1payload = sock.recv(65536)
2if not hmac.compare_digest(sign(payload), header_sig):
3    raise PermissionError("invalid signature")
4job = JobSchema.validate(json.loads(payload))

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Object InjectionCAPEC-586likelihood: Medium · High

ATT&CK techniques

—

Change log (0)

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-073-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-073-04.pdf

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records