Vulnerability · CVE-2025-3450
An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker t
Published Oct 7, 2025 · catalog updated Oct 8, 2025 · B&R Industrial Automation Automation Runtime
Last checked Nov 7, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-3450. EPSS is 0.28%. Act only if a listed version of B&R Industrial Automation Automation Runtime is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-11498 · Medium
- CVE-2025-3449 · Low
- CVE-2025-3448 · Medium
- Severity
- Critical9.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.28%
- Remediation
- Version ranges on file
- Affected products
- vendor B&R Industrial Automation Automation Runtime 4.0 <Q4.93
An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker to delete data causing denial of service conditions.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor B&R Industrial Automation Automation Runtime 4.0 <Q4.934.0 <Q4.93
How to fix CVE-2025-3450
Upgrade
CVE-2025-3450 lists a fix boundary at Q4.93. Compare the installed build with that boundary before you change production.
Version check
Seen in 4.0 <Q4.93
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-3450. EPSS is 0.28%. Act only if a listed version of B&R Industrial Automation Automation Runtime is installed.
Which versions are affected?
Compare what you have installed with B&R Industrial Automation Automation Runtime 4.0 <Q4.93 4.0 <Q4.93. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.28%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 7, 2025 · EUVD
Detected
An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker to delete data causing denial of service conditions.
Oct 8, 2025 · EUVD
Updated
An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker to delete data causing denial of service conditions.
Sources
- CVE.orgVulnerability recordCVE-2025-3450
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-3450
30-day exploitation probability 0.28%
first.org - EUVDVulnerability recordEUVD-2025-31925
An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker to delete data causing denial of service conditions.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 7, 2026
- CVE.orgOct 23, 2026
- EUVDOct 23, 2026