The (1) Service Provider (SP) and (2) Identity Provider (IdP) in PicketLink before 2.7.0 does not ensure that the Destination attribute in a Response element in a SAML assertion matches the location from which the message was received, which allows remote attackers to have unspecified impact via unknown vectors. NOTE: this identifier was SPLIT from CVE-2015-0277 per ADT2 due to different vulnerability types.
Conclusion & alert: CVE-2015-6254 is rated Moderate Risk (48.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.58%). 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 | 2026-05-19 | 0.70% | 0.58% | -0.12% |
| 2 | 2025-06-13 | 0.58% | 0.70% | +0.12% |
| 3 | 2025-04-15 | — | 0.58% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.0 | 2.0 | MEDIUM |
|
6.8 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2015-6254 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| picketlink | picketlink | <= 2.6.0 | cpe:2.3:a:picketlink:picketlink:*:cr5:*:*:*:*:*:* |