Medium severity · published Sep 17, 2025
CVE-2025-59351
Dragonfly possibly panics due to nil pointer dereference when using variables created alongside an error
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the first return value of a function is dereferenced even when the function returns an error. This can result in a nil dereference, and cause code to panic. This vulnerability is fixed in 2.1.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DR
dragonfly · dragonflyoss
< 2.1.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59351
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59351
Product
https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf
Patch
https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-4mhv-8rh3-4ghw
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