High (7.5). EPSS 3.3% chance of exploitation in the next 30 days.
The c-ares function `ares_parse_naptr_reply()`, which is used for parsing NAPTR responses, could be triggered to read memory outside of the given input buffer if the passed in DNS response packet was crafted in a particular way.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)