What is CVE-2025-66956?

CVE-2025-66956 is a critical-severity vulnerability in N/a, classified under Improper Access Control. CVSS score: 9.9/10. Published 2026-03-11.

How severe is CVE-2025-66956?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Is CVE-2025-66956 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in N/a

CVE-2025-66956

Insecure Access Control in Contact Plan, E-Mail, SMS and Fax components in Asseco SEE Live 2.0 allows remote attackers to access and execute attachments via a computable URL.

EPSS: 0.005 (39.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-284 — Improper Access Control

Public proof-of-concept exploits

TheWoodenBench/CVE-2025-66956

References

Frequently asked questions

What is CVE-2025-66956?: CVE-2025-66956 is a critical-severity vulnerability in N/a, classified under Improper Access Control. CVSS score: 9.9/10. Published 2026-03-11.
How severe is CVE-2025-66956?: Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2025-66956 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.