What is CVE-2025-66487?

CVE-2025-66487 is a low-severity vulnerability in IBM Aspera Shares, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 2.7/10. Published 2026-04-01.

How severe is CVE-2025-66487?

Low severity. CVSS v3 base score is 2.7 out of 10.

Resource exhaustion in IBM Aspera Shares

CVE-2025-66487

IBM Aspera Shares 1.9.9 through 1.11.0 does not properly rate limit the frequency that an authenticated user can send emails, which could result in email flooding or a denial of service.

Published 2026-04-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.003 (24.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

IBM Aspera Shares — versions 1.9.9
IBM Aspera Shares

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.ibm.com/support/pages/node/7267848 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-66487?: CVE-2025-66487 is a low-severity vulnerability in IBM Aspera Shares, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 2.7/10. Published 2026-04-01.
How severe is CVE-2025-66487?: Low severity. CVSS v3 base score is 2.7 out of 10.