CVSS 3.1
8.2 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:HCVE-2026-92695
High (8.2) in pavel-odintsov fastnetmon. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.
On this page
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.
Severity
- EPSS
- 0.3% estimated probability of exploitation activity in the next 30 days; 18th percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-125 Out-of-bounds Read
- Published
- Modified
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
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Explain CVE-2026-92695 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-92695?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-92695?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-92695 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| pavel-odintsov fastnetmon | <= 1.2.9 |
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Debian | 12, 13, 14 | fastnetmon | no fix listed | DEBIAN-CVE-2026-92695 |
| Ubuntu | 18.04:LTS, 26.10, Pro:20.04:LTS and 2 more | fastnetmon | no fix listed | UBUNTU-CVE-2026-92695 |
From the distributions' data via OSV.dev: the Debian Security Tracker; Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Debian · Ubuntu.
Red Hat
Red Hat rates this Important.
This vulnerability is rated as having an Important impact because an unauthenticated remote attacker can crash the monitoring process with malformed network traffic, requiring no privileges or user interaction. FastNetMon is not included or supported in Red Hat Enterprise Linux or other Red Hat products, so default platform installations are not exposed. In environments where this component is deployed independently, exploitation results in a denial of service that interrupts network anomaly monitoring and automated attack mitigation.
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-92695.
Attack patterns (CAPEC)
- CAPEC-540 Overread Buffers Likelihood: Low · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.