CVE-2020-26868 ARC Informatique PcVue Access to Critical Private Variable via Public Method
An unauthorized user can modify validation information, leading to denial of service and data modification in PcVue SCADA systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-26868?
CVE-2020-26868 is a high-severity missing authorization vulnerability in ARC Informatique PcVue, published on 12 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2020-26868?
It affects 1 product.
Products include Arcinfo Pcvue.
How do I fix CVE-2020-26868?
No fix has been published for CVE-2020-26868 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-26868 being exploited?
There is no known exploitation of CVE-2020-26868 in the wild and no public exploit code.
Other vulnerabilities in ARC Informatique PcVue
- CVE-2020-26867 ARC Informatique PcVue Deserialization of Untrusted Data
- CVE-2026-14868 Weak encryption mechanism for User directory
- CVE-2020-26869 ARC Informatique PcVue Exposure of Sensitive Information to an Unauthorized Actor
- CVE-2026-14867 Insecure password storage in User directory
- CVE-2022-4312 Information disclosure in PcVue
Sources
Also known as GHSA-hmv8-293h-5vrj.