Siyuan
D
RISKY
45
Total CVEs
25
Crit / High
9
Medium
7%
Unpatched
20%
Patched
7.8
Avg CVSS
0
CISA KEV
// Data sourced from NVD · CISA KEV · RHSA · GHSA · Debian · OSV · EPSS · Exploit-DB
How we collect data →
CVE Trend by Year
Patch Coverage
✓ 3 patched ✗ 1 unpatched ~ 6 under review ⏳ 4 pending score
Intelligence by Audience
PoC Available
5 / 20 shown
CISA KEV (Exploited)
0
Shodan Dorks
ssl:"siyuan" port:443
org:"Siyuan" http.status:200
Top EPSS (Exploitation Probability)
Quick Facts for Reporting
Total CVEs tracked
45
Critical severity
12
Actively exploited (CISA)
0
Unpatched ratio
7%
Avg CVSS score
7.8
Security grade
D (RISKY)
NVD Data Attribution
Source: NIST National Vulnerability Database (NVD) + GitHub Advisory Database.
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-08-07
Data aggregated by Valters IT Hub · valtersit.com
Last updated: 2026-08-07
Security Risk Score (for investors)
LOW
Vuln Volume
GOOD
Patch Responsiveness
LOW
CISA Exposure
⚠ Not financial advice. Past security incidents do not guarantee future stock performance.
Security News Google News
No recent security news found for Siyuan.
Recent CVEs
showing 20 of 15
| CVE ID | Severity | Patch | EPSS | Date |
|---|---|---|---|---|
| CVE-2026-87809 | 6.5 MEDIUM | PATCH UNDER REVIEW | 0.21% | 2026-09-09 |
| CVE-2026-87810 PoC | 5.3 MEDIUM | PATCH UNDER REVIEW | 0.21% | 2026-09-09 |
| CVE-2026-56395 | 9.4 CRITICAL | REJECTED / WITHDRAWN | 0.70% | 2026-06-21 |
| CVE-2025-68948 | 6.9 MEDIUM | PATCHED / FIX AVAILABLE | 0.22% | 2025-12-27 |
| CVE-2025-67488 | 7.8 HIGH | PATCHED / FIX AVAILABLE | 0.44% | 2025-12-09 |
| CVE-2025-21609 | 8.7 HIGH | PATCH UNDER REVIEW | 0.60% | 2025-01-03 |
| CVE-2024-55660 | 6.9 MEDIUM | PATCHED / FIX AVAILABLE | 0.62% | 2024-12-11 |
| CVE-2024-55659 | 8.7 HIGH | PATCH UNDER REVIEW | 0.38% | 2024-12-11 |
| CVE-2024-55658 | 8.7 HIGH | PATCH UNDER REVIEW | 0.60% | 2024-12-11 |
| CVE-2024-55657 | 8.7 HIGH | PATCH UNDER REVIEW | 0.74% | 2024-12-11 |
| CVE-2024-53505 PoC | ? N/A | UNKNOWN / UNPATCHED | 0.12% | 2024-11-29 |
| CVE-2024-53504 PoC | ? N/A | UNKNOWN / UNPATCHED | 0.82% | 2024-11-29 |
| CVE-2024-53507 PoC | ? N/A | UNKNOWN / UNPATCHED | 0.78% | 2024-11-29 |
| CVE-2024-53506 PoC | ? N/A | UNKNOWN / UNPATCHED | 0.44% | 2024-11-29 |
| CVE-2024-6938 | 5.3 MEDIUM | UNKNOWN / UNPATCHED | 0.36% | 2024-07-21 |
Intel
Trust ScoreD — RISKY
Max CVSS9.9
Last Updated2026-08-07
Top Weaknesses
CWE-22
Unknown Weakness Type
15 occurrences in Siyuan CVEs
(33% of total)
CWE-79
Cross-Site Scripting (XSS)
8 occurrences in Siyuan CVEs
(18% of total)
CWE-89
SQL Injection
7 occurrences in Siyuan CVEs
(16% of total)
CWE-863
Incorrect Authorization
2 occurrences in Siyuan CVEs
(4% of total)
CWE-862
Unknown Weakness Type
2 occurrences in Siyuan CVEs
(4% of total)
CWE-434
Unrestricted File Upload
1 occurrence in Siyuan CVEs
(2% of total)
CWE-321
Unknown Weakness Type
1 occurrence in Siyuan CVEs
(2% of total)
CWE-200
Sensitive Information Exposure
1 occurrence in Siyuan CVEs
(2% of total)
Company Profile
Siyuan is a Chinese software vendor known for developing the Siyuan Note, an open-source, privacy-focused note-taking and knowledge management application. The software is built with a local-first architecture, emphasizing data security and user control, which makes it relevant in the cybersecurity context of protecting sensitive personal and organizational information. Its significance lies in the growing demand for self-hosted, encrypted productivity tools.
Response Metrics
Est. MTTR ⓘ
~220 days
(Poor)
Mean Time To Remediate. Estimates days from CVE disclosure to patch.
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
Industry avg: ~60d (good) · 100-300d (poor) · 300d+ (critical)
CVE Trend ⓘ ↗ +967% worse
CVE count 2026 vs 2025:
3 → 32 CVEs
Patch Speed ⓘ Poor (>65% open)
7% of CVEs still unpatched.
Excellent: <20% · Good: 20-40% · Avg: 40-65% · Poor: >65%
Financial Risk Estimate
Est. GDPR Low
€720K
Est. GDPR High
€7.2M
Based on 12 critical CVEs, 0 CISA KEV, 100% unpatched. Model: GDPR Art.83 · not legal advice.
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