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TI-2021-11719 Aliases CVE-2021-31630GHSA-2c27-grr5-3w2g

Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary…

Priority MEDIUM 60CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-94.

Summary

Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary code via the "Hardware Layer Code Box" component on the "/hardware" page of the application.

Why it matters now

EPSS 0.27075 98th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:openplcproject:openplc_v3_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableOpenPLC
cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*not specified by NVDRunning onOpenPLC
  • cpe:2.3:o:openplcproject:openplc_v3_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·OpenPLC
  • cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·OpenPLC

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31630
  2. 2026-10-03 Alias added: GHSA-2c27-grr5-3w2g

References

Exploit 2

  • TI-2024-22495 Stack-based buffer overflow in OpenPLC_v3 CVSS 3.1CRITICAL 9.8
  • TI-2024-26520 Incorrect type conversion in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-26519 Incorrect type conversion in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-24528 Out-of-bounds read in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-24527 Out-of-bounds read in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2026-23850 A path injection vulnerability exists in OpenPLC v3… CVSS 3.1MEDIUM 6.5
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences