CVE-2026-110022
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
52/100
Published: 2026-11-04
Modified: 2026-11-12
First seen: 2026-11-04
Status: active
Attack Surface
Low Complexity
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
High
VI:
High
VA:
High
Description
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| Phoenix Contact | PLCnext Engineer | 0.0 < 2026.6 |
| Phoenix Contact | PLCnext Engineer | 0.0 < 2026.6 |