In Siren Investigate before 13.2.2, session keys remain active even after logging out.
Conclusion & alert: CVE-2023-35857 is rated Moderate Risk (53.9/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.53%). 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 | 0.08% | 0.53% | +0.45% |
| 2 | 2025-11-21 | 0.29% | 0.08% | -0.21% |
| 3 | 2025-11-18 | — | 0.29% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| siren | investigate | < 13.2.2 | cpe:2.3:a:siren:investigate:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://community.siren.io/c/announcements | Release Notes |
| https://docs.support.siren.io/siren-platform-user-guide/13.2/release-notes.html | Release Notes |