CVE-2026-92695 Details
Description
FastNetMon is a high-performance DDoS detector and sensor. In version 1.2.9 and earlier, the live parse_packet() callback in src/pcap_plugin/pcap_collector.cpp is registered through pcap_loop and processes captured frames when pcap = on without checking packethdr->caplen. A short frame or an attacker-controlled IPv4 header length can make the parser dereference IP or transport headers beyond the captured bytes, causing an out-of-bounds read and process termination. No fixed release is available as of this review.
A denial-of-service vulnerability has been identified in FastNetMon versions through 1.2.9. The issue arises in the pcap capture plugin, where the packet parsing function, 'parse_packet()', lacks proper bounds checking on the length of captured frames. This flaw allows a short or manipulated IPv4 header to cause the parser to read beyond the intended data, leading to an out-of-bounds memory access and process crash. The vulnerability is triggered when 'pcap' is enabled, and the flawed parsing function is actively processing network traffic.
As of now, there is no fixed release available for this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/pavel-odintsov/fastnetmon/commit/5d0ee2d25fddb2db746ce4ce3326a589a2afef40 | [email protected] | Source CodeVendor |
| https://github.com/pavel-odintsov/fastnetmon/security/advisories/GHSA-c27c-943r-vr8h | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| FastNetMon | <= 1.2.9 (semver) |
CPE
Remediation
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Change History
1 change record found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 5, 2026 | New CVE Received | [email protected] |