CVE-2025-11044
DoS in ANSL-Server of B&R Automation Runtime via race condition
Is CVE-2025-11044 being exploited?
Not confirmed. CVE-2025-11044 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.37% probability of exploitation in the next 30 days.
How severe is CVE-2025-11044?
CVE-2025-11044 is rated High with a CVSS score of 8.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-11044?
Yes. A fix has been recorded for CVE-2025-11044. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-11044 affect?
CVE-2025-11044 affects B&R Automation Runtime ANSL-Server (versions < 6.5, < R4.93). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-11044?
Upgrade to 6.5+ / R4.93+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can trigger race condition in ANSL-Server, causing permanent DoS on devices.
Patch when possible
- affected>= 4 and < R4.93
- affected>= 6 and < 6.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.