Siemens CADRA: 11 CVEs, Critical 9.8
Summary
CISA reports 11 vulnerabilities in Siemens CADRA. Weakness types: Improper Input Validation, Incorrect Bitwise Shift of Integer, Out-of-bounds Write (+3 more). CADRA is affected by multiple zlib and Foxit vulnerabilities. Siemens has released a new version for CADRA and recommends to update to the latest version. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available. Highest CVSS v3 score: 9.8 (Critical), exploitable over the network. At least one CVE is on CISA's Known Exploited Vulnerabilities list.
At a glance
- Vendor
- Siemens
- Products
- CADRA
- CVEs
- CVE-2005-2096, CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2017-14919, CVE-2018-25032, CVE-2022-37434, CVE-2023-45853, CVE-2025-10585, CVE-2025-13223, CVE-2026-22184
- Highest CVSS v3
- 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Highest CVSS v4
- –
- Known exploited (KEV)
- Yes
- Sectors (per CISA)
- Chemical, Commercial Facilities, Communications, Energy
- Deployed
- Worldwide
- Vendor HQ
- Germany
Vulnerabilities
| CVE | Weakness | CVSS v3 | CVSS v4 | KEV | Description (from advisory) |
|---|---|---|---|---|---|
| CVE-2005-2096 | Improper Input Validation | 7.3 | – | No | CVE-2005-2096 |
| CVE-2016-9840 | Improper Input Validation | 8.8 | – | No | CVE-2016-9840 |
| CVE-2016-9841 | Improper Input Validation | 9.8 | – | No | CVE-2016-9841 |
| CVE-2016-9842 | Incorrect Bitwise Shift of Integer | 8.8 | – | No | CVE-2016-9842 |
| CVE-2017-14919 | Improper Input Validation | 7.5 | – | No | CVE-2017-14919 |
| CVE-2018-25032 | Out-of-bounds Write | 7.5 | – | No | CVE-2018-25032 |
| CVE-2022-37434 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | 9.8 | – | No | CVE-2022-37434 |
| CVE-2023-45853 | Integer Overflow or Wraparound | 9.8 | – | No | CVE-2023-45853 |
| CVE-2025-10585 | Access of Resource Using Incompatible Type ('Type Confusion') | 8.8 | – | Yes (added 2025-09-23) | CVE-2025-10585 |
| CVE-2025-13223 | Access of Resource Using Incompatible Type ('Type Confusion') | 8.8 | – | Yes (added 2025-11-19) | CVE-2025-13223 |
| CVE-2026-22184 | Out-of-bounds Write | 0.0 | – | No | CVE-2026-22184 |
Affected products (2)
- CADRA < V2511
- CADRA
Vendor fixes and mitigations (from advisory)
- Vendor Fix: Update to V2511 or later version
- Mitigation: Block access to untrusted or external web content from sensitive systems
- None Available: Currently no fix is available
Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.
Sources
- CISA advisory ICSA-26-202-06
- Machine-readable CSAF record
- https://cert-portal.siemens.com/productcert/csaf/ssa-470355.json
- https://cert-portal.siemens.com/productcert/html/ssa-470355.html
This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.