VDB
CVE-2025-30355
CVE-2025-30355
PUBLISHED
CVSS 7.099999904632568 HIGH
Synapse vulnerable to federation denial of service via malformed events
EPSS 1.20% · 67.2th percentile
Risk Scores
CVSS 3.1
7.099999904632568
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS Score
1.20%
67.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| matrix | synapse | 0 |
| element-hq | synapse | < 1.127.1 |
| PyPI | matrix-synapse | 0 |
Timeline
- Jan 21, 1970 Security Advisory
- Mar 26, 2025 VulnCheck KEV Exploitation
- Mar 26, 2025 PoC Published
- Mar 27, 2025 CVE Published
- Mar 27, 2025 VulnCheck KEV Exploitation
- Mar 27, 2025 EPSS Score
- Mar 27, 2025 Coalition ESS Score
- Mar 28, 2025 Coalition ESS Score
- Mar 28, 2025 VulnCheck XDB Entry
- Mar 28, 2025 PoC Published
- Apr 10, 2025 EPSS Score
- Apr 28, 2025 EPSS Score
References
- https://github.com/element-hq/synapse/security/advisories/GHSA-v56r-hwv5-mxg6 url
- https://github.com/element-hq/synapse/commit/2277df2a1eb685f85040ef98fa21d41aa4cdd389 url
- https://github.com/element-hq/synapse/releases/tag/v1.127.1 url
- https://nvd.nist.gov/vuln/detail/CVE-2025-30355 advisory
- https://github.com/element-hq/synapse package