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CONPROSYS PAC EUVDEUVD-2026-77231

| CVE-2026-82778 MEDIUM
Exposure of Information Through Directory Listing (CWE-548)
2026-09-14 jpcert GHSA-pphp-q9gw-55pq
5.3
CVSS 4.0 · Vendor: jpcert
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Severity by source

Vendor (jpcert) PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.3 MEDIUM

Description states unauthenticated access (PR:N); low confidentiality impact from directory listing only; no integrity or availability impact.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (jpcert).

CVSS VectorVendor: jpcert

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Sep 14, 2026 - 08:01 EUVD
Analysis Generated
Sep 14, 2026 - 07:39 vuln.today
CVSS changed
Sep 14, 2026 - 07:22 NVD
4.3 (MEDIUM) 5.3 (MEDIUM)

DescriptionCVE.org

An exposure of information through directory listing issue exists in CONPROSYS PAC Series. Accessing a specific URL on this product may allow a remote unauthenticated attacker to obtain the directory list without authentication.

AnalysisAI

Directory listing exposure in CONTEC CONPROSYS PAC Series enables unauthenticated network attackers to enumerate internal directory structures by requesting a specific URL on the device's embedded web server. Affected models include the Integrated Type CPS-PC341 and Configurable Type CPS-PCS341, both deployed in industrial automation environments. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The CONPROSYS PAC device's embedded web server must be reachable over the network from the attacker's position. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.3 (Medium) reflects a network-reachable, low-complexity information disclosure with limited confidentiality impact and no integrity or availability consequences. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the firmware update or configuration change detailed in the CONTEC security advisory (accessible via the reference at https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_cps_26091000_en.pdf). … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-77231 vulnerability details – vuln.today

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