CVE-2025-34063

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 58% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 10.0Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A cryptographic authentication bypass vulnerability exists in OneLogin AD Connector prior to 6.1.5 due to the exposure of a tenant’s SSO JWT signing key via the /api/adc/v4/configuration endpoint. An attacker in possession of the signing key can craft valid JWT tokens impersonating arbitrary users within a OneLogin tenant. The tokens allow authentication to the OneLogin SSO portal and all downstream applications federated via SAML or OIDC. This allows full unauthorized access across the victim’s SaaS environment.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
76(Attend)
EG Risk 76/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
41.9%
KEV
Not listed

Published

July 1, 2025

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated Jul 17, 2026
No patch confirmed yet.
generic

One Identity OneLogin AD Connector Credential Exposure Cross-Tenant Account Compromise | Advisories | VulnCheck

https://vulncheck.com/advisories/onelogin-ad-connector-account-compromise
generic

OneLogin, Many Issues: How I Pivoted from a Trial Tenant to Compromising Customer Signing Keys - SpecterOps

https://specterops.io/blog/2025/06/10/onelogin-many-issues-how-i-pivoted-from-a-trial-tenant-to-compromising-customer-signing-keys/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 126 total refreshes for this CVE.

  1. 2026-07-23 02:54 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
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  45. 2026-06-08 16:02 UTCEG score recompute▲ 10.00
  46. 2026-06-08 16:02 UTCGHSA enrichment
  47. 2026-06-08 14:16 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2025-34063?
CVE-2025-34063 is a critical vulnerability published on July 1, 2025. A cryptographic authentication bypass vulnerability exists in OneLogin AD Connector prior to 6.1.5 due to the exposure of a tenant’s SSO JWT signing key via the /api/adc/v4/configuration endpoint. An attacker in possession of the signing key can craft valid JWT tokens impersonating arbitrary users…
When was CVE-2025-34063 disclosed?
CVE-2025-34063 was first published in the National Vulnerability Database on July 1, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-34063 actively exploited?
CVE-2025-34063 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-34063?
CVE-2025-34063 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2025-34063?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-34063, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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