CVE-2026-110022 (GCVE-0-2026-110022)

Vulnerability from cvelistv5 – Published: 2026-11-04 09:19 – Updated: 2026-11-04 20:10
VLAI
Title
Signed plug-in validation bypass
Summary
The PFI plugin framework deploys executable assemblies (DLLs) from a signed plugin package into the local plugin repository and loads them via reflection, but the deployment routine processes archive entries that were never covered by the signature verification. An unauthenticated local attacker can replace an unsigned DLL outside the signed prefix in the archive passes verification and overwrites the legitimate signed assembly at the same destination path. The plugin loader then instantiates the attacker-supplied code without any additional integrity check resulting in a full compromise of the affected systems.
Severity
8.6 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.4 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 20:10 UTC
CWE
  • CWE-494 - Download of Code Without Integrity Check
Assigner
CERTVDE CNA under the icscert root
CNA scorecard B 76/100 over 151 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Phoenix Contact PLCnext Engineer Affected: 0.0 , < 2026.6 (semver)
    cpe:2.3:a:phoenix_contact:plcnext_engineer:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Ievgen Bondarenko
Show details on NVD website
To clipboard 

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