HOMEVULNERABILITIESCVE-2020-26867
CRITICAL

CVE-2020-26867

CWE-502Published: October 12, 2020· Updated: Jul 9, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-26867 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

arcinfo1 product(s)
pcvue
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://www.pcvuesolutions.com/security
ADVISORYhttps://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://us-cert.cisa.gov/ics/advisories/icsa-20-308-03
ADVISORYhttps://www.pcvuesolutions.com/security
ADVISORYhttps://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1

All References (14)

→
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-015-remote-code-execution-in-arc-informatique-pcvue/Broken Link
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://www.pcvuesolutions.com/securityVendor Advisory
→
https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1Permissions Required · Vendor Advisory
→
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2020/10/09/klcert-20-015-remote-code-execution-in-arc-informatique-pcvue/Broken Link
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://us-cert.cisa.gov/ics/advisories/icsa-20-308-03Third Party Advisory · US Government Resource
→
https://www.pcvuesolutions.com/securityVendor Advisory
→
https://www.pcvuesolutions.com/support/index.php/en/security-bulletin/1076-security-bulletin-2020-1Permissions Required · Vendor Advisory

Quick Facts

CVE IDCVE-2020-26867
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-502
CISA KEVNo
Affected1 vendor(s)
PublishedOct 12, 2020

Related CVEs (CWE-502)

CVE-2026-20131
KEV10.0
CVE-2026-43633
10.0
CVE-2024-43242
10.0
CVE-2024-44102
10.0
CVE-2026-26221
10.0
CVE-2025-42944
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-26867 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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