{"id":"CVE-2026-92694","published":"2026-11-05T23:17:02.110","lastModified":"2026-11-05T23:17:02.257","description":"FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, FastNetMon's IPv6 top-talkers screen-draw thread in draw_table_ipv6() in src/fastnetmon_logic.cpp iterates ipv6_host_counters.average_speed_map without holding counter_map_mutex while recalculate_speed() inserts new keys and may rehash the same map. The race requires networks_list to include the targeted IPv6 range. It causes confirmed undefined behavior under load; a process crash is plausible but was not observed, so reliable denial of service has not been established. No fixed release is available as of this review.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-362"],"vendors":[],"products":[],"references":[{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/1294724ea931dc78fe545360f2193398bba35381","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1087","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-phrw-2q76-5m7h","tags":[]}],"exploitRefs":[{"url":"https://github.com/pavel-odintsov/fastnetmon/commit/1294724ea931dc78fe545360f2193398bba35381","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/pull/1087","tags":[]},{"url":"https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-phrw-2q76-5m7h","tags":[]}],"hasPoc":true,"ai":null}