Quick answers
- Is CVE-2026-92697 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-92697 being exploited in the wild.
- How severe is CVE-2026-92697?
- High severity, with a CVSS score of 7.5, published 5 November 2026.
- Which products and versions are affected?
- FastNetMon 1.2.9 and earlier.
- Is there a fix for CVE-2026-92697?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-92697 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-92697?
- Check whether you run FastNetMon at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is an out-of-bounds read in the NetFlow v9 options flowset handler, where strlen() is called on an attacker-controlled interface-description field without proper length bounds. An unauthenticated remote attacker sending crafted UDP packets to the collector can trigger a read past the field and packet buffer, potentially crashing the process. The fix uses strnlen() bounded by the declared field length to prevent reads beyond the field boundary.
Affected products
- FastNetMon FastNetMon 1.2.9 and earlier
Timeline
- 2026-11-05: disclosed