What’s Vulnerable › Vulnerabilities

CVE-2020-26868: ARC Informatique PcVue Access to Critical Private Variable via Public Method

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-10-12 · updated 2026-07-09
• Weakness: CWE-767

Description

ARC Informatique PcVue prior to version 12.0.17 is vulnerable to a denial-of-service attack due to the ability of an unauthorized user to modify information used to validate messages sent by legitimate web clients. This issue also affects third-party systems based on the Web Services Toolkit.

Affected products

• arcinfo PcVue: from 8.10 before 12.0.17 — fixed in 12.0.17

How to fix

Upgrade to a fixed version: arcinfo PcVue 12.0.17. Check the vendor advisory for mitigations.

References

• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-016-denial-of-service-in-arc-informatique-pcvue/
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
• https://www.pcvuesolutions.com/security
• https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-016-denial-of-service-in-arc-informatique-pcvue/
• https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
• https://www.pcvuesolutions.com/security
• https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1

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