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750 881 Firmware CVE-2023-1619

MEDIUM
Improper Validation of Consistency within Input (CWE-1288)
2023-06-26 info@cert.vde.com
Information Disclosure 750 881 Firmware 750 880 Firmware 750 852 Firmware 750 882 Firmware 750 885 Firmware 750 831 Firmware 750 889 Firmware 750 829 Firmware 750 823 Firmware 750 832 Firmware 750 862 Firmware 750 891 Firmware 750 890 Firmware 750 331 Firmware 750 893 Firmware 750 8202 Firmware 750 8203 Firmware 750 8204 Firmware 750 8206 Firmware 750 8207 Firmware 750 8208 Firmware 750 8210 Firmware 750 8211 Firmware 750 8212 Firmware 750 8213 Firmware 750 8214 Firmware 750 8216 Firmware 750 8217 Firmware 750 890 040 000 Firmware 750 890 025 001 Firmware 750 890 025 002 Firmware 750 890 025 000 Firmware 750 832 000 002 Firmware 750 880 040 000 Firmware 750 880 025 002 Firmware 750 880 025 001 Firmware 750 880 025 000 Firmware 750 831 000 002 Firmware 750 8202 000 012 Firmware 750 8202 000 022 Firmware 750 8202 025 001 Firmware 750 8202 025 000 Firmware 750 8202 000 011 Firmware 750 8206 025 000 Firmware 750 8206 025 001 Firmware 750 8207 025 000 Firmware 750 8207 025 001 Firmware 750 8208 025 000 Firmware 750 8208 025 001 Firmware 750 8210 025 000 Firmware 750 8212 000 100 Firmware 750 8212 025 000 Firmware 750 8212 025 001 Firmware 750 8212 025 002 Firmware 750 8215 Firmware 750 8216 025 000 Firmware 750 8216 025 001 Firmware 750 8202 040 000 Firmware 750 8206 040 000 Firmware 750 8206 040 001 Firmware 750 8210 040 000 Firmware 750 8211 040 000 Firmware 750 8212 040 000 Firmware 750 8212 040 001 Firmware 750 8212 040 010 Firmware 750 8213 040 010 Firmware 750 8216 040 000 Firmware 750 8217 025 000 Firmware 750 8217 600 000 Firmware 750 8217 625 000 Firmware 750 8202 025 002 Firmware 750 8202 040 001 Firmware 750 8203 025 000 Firmware 750 8204 025 000 Firmware 750 8211 040 001 Firmware 750 885 025 000 Firmware Wago
4.9
CVSS 3.1 · Vendor: cert
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Vulnerability Assessment

Weakness
CWE
CWE-1288
ASVS 5.0
V15 - Secure Coding and Architecture Hardware validation bypass
Impact

CVSS score of 4.9 (MEDIUM). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a malformed packet. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-1288. Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a malformed packet. Affected products include: Wago 750-331 Firmware, Wago 750-8202 Firmware, Wago 750-8202\/000-011 Firmware, Wago 750-8202\/000-012 Firmware, Wago 750-8202\/000-022 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (cert) PRIMARY 4.9 MEDIUM
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Primary rating from Vendor (cert) · only source for this CVE.

CVSS VectorVendor: cert

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionCVE.org

Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a malformed packet.

Threat Intelligence Overview

EPSS Score
0.8%
Top 48% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.8%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:o:wago:750-331_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/000-011_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/000-011_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/000-012_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/000-012_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/000-022_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/000-022_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/025-000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/025-000_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/025-001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/025-001_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/025-002_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/025-002_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/040-000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/040-000_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/040-001_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:750-8202\/040-001_firmware:fw22:-:*:*:*:*:*:*
cpe:2.3:o:wago:750-8203_firmware:*:*:*:*:*:*:*:*
+ 106 more

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The Web-GUI on WAGO Series 750-88x (750-330, 750-352, 750-829, 750-831, 750-852, 750-880, 750-881, 750-882, 750-884, 750

Same weakness CWE-1288 – Improper Validation of Consistency within Input

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Same technique Information Disclosure

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7.5

References

Advisories & patches
REF https://cert.vde.com/en/advisories/VDE-2023-006/

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