Vulnerability in Dragonflyoss Dragonfly
CVE-2025-59348
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the processPieceFromSource method does not update the structure’s usedTraffic field, because an uninitialized variable n is used as a guard to the AddTraffic method call, instead of the result.Size variable. A task is processed by a peer. The usedTraffic metadata is not updated during the processing. Rate limiting is incorrectly applied, leading to a denial-of-service condition for the peer. This vulnerability is fixed in 2.1.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Dragonflyoss Dragonfly — versions < 2.1.0
- Linuxfoundation Dragonfly
Weakness classification (CWE)
References
- github.com/dragonflyoss/dragonfly/security/advisories/GHSA-2qgr-gfvj-qpcr (Patch, Third Party Advisory)
- github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensi… (Product)
Frequently asked questions
- What is CVE-2025-59348?
- CVE-2025-59348 is a high-severity vulnerability in Dragonflyoss Dragonfly, classified under CWE-457. CVSS score: 7.5/10. Published 2025-09-17.
- How severe is CVE-2025-59348?
- High severity. CVSS v3 base score is 7.5 out of 10.