CVE-2020-26868
ARC Informatique PcVue Access to Critical Private Variable via Public Method
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
ARC Informatique PcVue Access to Critical Private Variable via Public Method
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.
- Record
CVE-2020-26868- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-767
- Updated
- 2026-11-02
EUVDEUVD-2020-19404
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.
- Record
EUVD-2020-19404- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hmv8-293h-5vrj
A Denial Of Service vulnerability exists in PcVue from version 8.10 onward, due to the ability...
A Denial Of Service vulnerability exists in PcVue from version 8.10 onward, due to the ability for a non-authorized user to modify information used to validate messages sent by legitimate web clients.
- Record
GHSA-hmv8-293h-5vrj- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-668, CWE-767
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2020-26868- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-767, CWE-668
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-26868 is a high vulnerability (CVSS 7.5) in Arc Informatique Pcvue, published October 12, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.15%, the 82nd percentile. No source names a fixed version.
References
us-cert.cisa.gov/ics/advisories/icsa-20-308-03
pcvuesolutions.com/security
ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-016-denial-of-service-in-arc-informatique-pcvue
nvd.nist.gov/vuln/detail/CVE-2020-26868
github.com/advisories/GHSA-hmv8-293h-5vrj