CVE-2022-4333 Sprecher: Sprecon maintenance access with hardcoded credentials
Remote attackers can take over SPRECON-E CPU devices using hardcoded maintenance credentials, requiring deactivation of these accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-4333?
CVE-2022-4333 is a critical vulnerability in Sprecher Automation SPRECON-E CPU MC33/34, published on 1 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Hardcoded Credentials in multiple SPRECON-E CPU variants of Sprecher Automation allows an remote attacker to take over the device. These accounts should be deactivated according to Sprecher's hardening guidelines.
Weakness: CWE-798
Which versions are affected by CVE-2022-4333?
It affects 9 products.
Products include Sprecher-Automation Sprecon-E-C Firmware, Sprecher-Automation Sprecon-E-P Dl6-1 Firmware, Sprecher-Automation Sprecon-E-P Dq6-1 Firmware, Sprecher-Automation Sprecon-E-P Ds6-0 Firmware, Sprecher-Automation Sprecon-E-T3 Firmware, Sprecher-Automation Sprecon-E-Tc Ax-3110 Firmware and 3 more.
How do I fix CVE-2022-4333?
No fix has been published for CVE-2022-4333 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-4333 being exploited?
There is no known exploitation of CVE-2022-4333 in the wild and no public exploit code.
Other vulnerabilities in Sprecher Automation SPRECON-E CPU MC33/34
- CVE-2025-41742 Hardcoded credentials in SPRECON-E-C
- CVE-2025-41744 Sprecher Automation: SPRECON-E series has static default key material for TLS connections
- CVE-2022-4332 Sprecher: Vulnerable firmware verification
- CVE-2024-6758 Improper Privilege Management vulnerability in Sprecher Automation SPRECON-E
- CVE-2025-41743 Sprecher Automation: SPRECON-E series prone to weak encryption of update files
Sources
Also known as GHSA-539f-5h6r-p5pf.