CVE-2022-45147 is a critical deserialization vulnerability affecting Siemens SIMATIC PCS neo V4.0 and SIMATIC STEP 7 V16, V17, and V18 (prior to Update 2). The flaw stems from improper restriction of the .NET BinaryFormatter when processing user-controlled input, allowing for type confusion and arbitrary code execution. With a CVSS score of 7.8 (High), this vulnerability requires user interaction (UI:R) but has low attack complexity (AC:L) and can lead to high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Siemens | SIMATIC PCS Neo V4.0 | >= 0, < *CNA affecteddefault unknown | |
| Siemens | SIMATIC STEP 7 V16 | >= 0, < *CNA affecteddefault unknown | |
| Siemens | SIMATIC STEP 7 V17 | >= 0, < *CNA affecteddefault unknown | |
| Siemens | SIMATIC STEP 7 V18 | >= 0, < V18 Update 2CNA affecteddefault unknown |
CVSS version used by this source: 4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.