CVE-2025-66956
Insecure access control in Asseco SEE Live 2.0 enables remote URL-based attachment access/execution.
Is CVE-2025-66956 being exploited?
Not confirmed. CVE-2025-66956 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 0.48% probability of exploitation in the next 30 days.
How severe is CVE-2025-66956?
CVE-2025-66956 is rated Critical with a CVSS score of 9.9. 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-2025-66956?
Not known from our data. No patch reference has been recorded for CVE-2025-66956, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2025-66956 affect?
CVE-2025-66956 affects Asseco SEE Live 2.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-66956?
Patch when released; restrict URL exposure and monitor.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attackers can access and execute attachments via a computable URL, risking RCE and data exposure.
Patch when possible