IBM Domino 9.0.1 Fix Pack 3 Interim Fix 2 through 9.0.1 Fix Pack 5 Interim Fix 1, when using TLS and AES GCM, uses random nonce generation, which makes it easier for remote attackers to obtain the authentication key and spoof data by leveraging the reuse of a nonce in a session and a "forbidden attack." NOTE: this CVE has been incorrectly used for GCM nonce reuse issues in other products; see CVE-2016-10213 for the A10 issue, CVE-2016-10212 for the Radware issue, and CVE-2017-5933 for the Citrix issue.
Conclusion & alert: CVE-2016-0270 is rated Moderate Risk (56.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.10%). Core evidence: EPSS rose +2.56% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.54% | 3.10% | +2.56% |
| 2 | 2026-03-03 | 0.71% | 0.54% | -0.17% |
| 3 | 2025-03-30 | — | 0.71% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.9 | 3.0 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ibm | client_application_access | 1.0.0.1 | cpe:2.3:a:ibm:client_application_access:1.0.0.1:*:*:*:*:*:*:* |
| ibm | domino | 9.0.1.3 | cpe:2.3:a:ibm:domino:9.0.1.3:*:*:*:*:*:*:* |
| ibm | domino | 9.0.1.4 | cpe:2.3:a:ibm:domino:9.0.1.4:*:*:*:*:*:*:* |
| ibm | domino | 9.0.1.5 | cpe:2.3:a:ibm:domino:9.0.1.5:*:*:*:*:*:*:* |
| ibm | notes | 9.0.1.3 | cpe:2.3:a:ibm:notes:9.0.1.3:*:*:*:*:*:*:* |
| ibm | notes | 9.0.1.4 | cpe:2.3:a:ibm:notes:9.0.1.4:*:*:*:*:*:*:* |
| ibm | notes | 9.0.1.5 | cpe:2.3:a:ibm:notes:9.0.1.5:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www-01.ibm.com/support/docview.wss?uid=swg21979604 | Mitigation Patch Vendor Advisory |
| http://www-01.ibm.com/support/docview.wss?uid=swg21979669 | Mitigation Patch Vendor Advisory |
| http://www-01.ibm.com/support/docview.wss?uid=swg21979673 | Mitigation Patch Vendor Advisory |
| http://www.securityfocus.com/bid/96062 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1037795 | |
| https://github.com/nonce-disrespect/nonce-disrespect | Third Party Advisory |
| https://support.citrix.com/article/CTX220329 |