Description
An issue was discovered in FNET through 4.6.4. The code that initializes the DNS client interface structure does not set sufficiently random transaction IDs (they are always set to 1 in _fnet_dns_poll in fnet_dns.c). This significantly simplifies DNS cache poisoning attacks.
Scores
CVSS v3
5.3
EPSS
0.0045
EPSS Percentile
63.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-330
Status
published
Products (1)
butok/fnet
< 4.6.4
Published
Dec 11, 2020
Tracked Since
Feb 18, 2026