CVE-2025-68621

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 59% 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
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.4Exploit: None knownExposed: 0

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

Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. Prior to 0.101.0, a critical timing attack vulnerability in Trilium's sync authentication endpoint allows unauthenticated remote attackers to recover HMAC authentication hashes byte-by-byte through statistical timing analysis. This enables complete authentication bypass without password knowledge, granting full read/write access to victim's knowledge base. This vulnerability is fixed in 0.101.0.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

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
Severity74% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

February 6, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github.
github Patch Available🟡 PoC Available

Timing Attack Vulnerability in /api/login/sync (CWE-208) · Advisory · TriliumNext/Trilium · GitHub

https://github.com/TriliumNext/Trilium/security/advisories/GHSA-hxf6-58cx-qq3x
github_pr

feat(login): implement better time comparison management across several features

Fix merged in TriliumNext/Trilium PR #8129 on 2025-12-25 — awaiting tagged release

https://github.com/TriliumNext/Trilium/pull/8129

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 26× 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 151 total refreshes for this CVE.

  1. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-17 19:30 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
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  17. 2026-08-31 21:34 UTCOSV refresh
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  1. 2026-08-20 22:55 UTCEPSS rescore
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  5. 2026-08-16 14:55 UTCEPSS rescore
  6. 2026-08-16 02:14 UTCEPSS rescore
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  8. 2026-08-14 10:57 UTCEG score recompute
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 03:16 UTCEG score recompute
  11. 2026-08-12 13:50 UTCEPSS rescore
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  13. 2026-08-10 23:59 UTCEPSS rescore
  14. 2026-08-09 15:37 UTCEG score recompute
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  17. 2026-08-07 22:35 UTCEG score recompute
  18. 2026-08-07 16:27 UTCEPSS rescore
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  20. 2026-08-06 04:14 UTCEG score recompute
  21. 2026-08-05 19:17 UTCEPSS rescore
  22. 2026-08-04 10:37 UTCEPSS rescore
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  24. 2026-08-02 21:13 UTCEG score recompute
  25. 2026-08-02 02:26 UTCEPSS rescore
  26. 2026-08-01 04:15 UTCEPSS rescore
  27. 2026-07-30 16:27 UTCEPSS rescore
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  37. 2026-07-23 03:02 UTCEG score recompute
  38. 2026-07-22 14:08 UTCEPSS rescore
  39. 2026-07-21 15:24 UTCEPSS rescore
  40. 2026-07-20 17:08 UTCEPSS rescore
  41. 2026-07-19 14:30 UTCEPSS rescore
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  43. 2026-07-19 02:28 UTCEPSS rescore
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  45. 2026-07-18 10:04 UTCEPSS rescore
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  47. 2026-07-17 18:29 UTCOSV refresh
  48. 2026-07-16 17:02 UTCEPSS rescore
  49. 2026-07-16 17:02 UTCEPSS rescore
  50. 2026-07-15 16:57 UTCEPSS rescore
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  57. 2026-07-11 08:27 UTCEPSS rescore
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  68. 2026-07-01 15:06 UTCEPSS rescore
  69. 2026-06-30 23:22 UTCEPSS rescore
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  71. 2026-06-29 16:23 UTCOSV refresh
  72. 2026-06-29 14:06 UTCEPSS rescore
  73. 2026-06-29 14:06 UTCEPSS rescore
  74. 2026-06-28 14:07 UTCEPSS rescore
  75. 2026-06-28 14:07 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-68621?
CVE-2025-68621 is a high vulnerability published on February 6, 2026. Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. Prior to 0.101.0, a critical timing attack vulnerability in Trilium's sync authentication endpoint allows unauthenticated remote attackers to recover HMAC…
When was CVE-2025-68621 disclosed?
CVE-2025-68621 was first published in the National Vulnerability Database on February 6, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-68621 actively exploited?
CVE-2025-68621 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.4% of all scored CVEs.
What is the CVSS score of CVE-2025-68621?
CVE-2025-68621 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2025-68621?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-68621, 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.

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