← CVE Radar
CVE-2026-92694FastNetMon: IPv6 host counters map iterated without lock, racing concurrent inserts
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.
5.9 MEDIUMEPSS 0.24%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 5.9 | MEDIUM | 3.1GitHub_M (CNA) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
Details
- CVE ID
- CVE-2026-92694
- Status
- Deferred
- Assigner (CNA)
- GitHub_M
- Published
- Nov 5, 2026
- Last modified
- 2026-11-05 23:17 UTC
- Weaknesses
- CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Products
As published by the CNA in the CVE record.
pavel-odintsovfastnetmon1 version range
- <= 1.2.9