CVE-2026-48683

FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read vulnerability in the NetFlow v9 data flowset processor. In src/netflowplugin/netflowv9collector.cpp, the Data template branch lines 1695-1702 iterates over flow records without performing a per-iteration bounds check agains...

CVE-2026-48692

FastNetMon Community Edition through 1.2.9 exposes a gRPC API server on port 50052 with no authentication mechanism. The server is initialized with grpc::InsecureServerCredentials src/fastnetmon.cpp line 477 and a source code comment explicitly acknowledges 'Listen on the given address without an...

CVE-2026-48691

FastNetMon Community Edition through 1.2.9 contains an integer overflow in the BGP ASPATH attribute encoder. In src/bgpprotocol.hpp, the IPv4UnicastAnnounce::getattributes function computes attributelength as 'sizeofbgpaspathsegmentelementt + this-aspathasns.size sizeofuint32t' and stores it in a...

PT-2026-43356

🚨 CVE-2026-48696 FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689. 🎖@cveNotify...

PT-2026-43354

Name of the Vulnerable Software and Affected Versions FastNetMon Community Edition versions prior to 1.3.0 Description A configuration injection issue exists in the Juniper router integration plugin. In the file src/juniper plugin/fastnetmon juniper.php, the variable IP ATTACK received from argv1...

CVE-2026-48692

FastNetMon Community Edition

CVE-2026-48696: Buffer Copy without Checking Size of Input

FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689...

CVE-2026-48694: Improper Neutralization of Special Elements used in a Command

FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniperplugin/fastnetmonjuniper.php, the $IPATTACK variable received from argv1 is directly interpolated into Juniper NETCONF set-configuration commands at...

CVE-2026-48684

CVE-2026-48684 affects FastNetMon Community Edition up to 1.2.9. The NetFlow v9 options-template parser has an out-of-bounds read in process_netflow_v9_options_template(), where the scope parsing loop and the options-field loop can read past the UDP packet buffer due to attacker-controlled option...

CVE-2026-48696

Technical details about CVE-2026-48696 are not publicly provided in the supplied documents. Monitor for updates from vendors and security advisories; no affected products, vectors, or remediation are specified here.

PT-2026-43272

FastNetMon Community Edition through 1.2.9 has out-of-bounds memory access because it incorrectly parses BGP path attributes with the extended length flag set. In src/bgp protocol.hpp, the parse raw bgp attribute function correctly identifies when extended length bit is set and sets length of...

PT-2026-43270

Name of the Vulnerable Software and Affected Versions FastNetMon Community Edition versions prior to 1.2.10 Description An out-of-bounds read exists in the NetFlow v9 data flowset processor within the src/netflow plugin/netflow v9 collector.cpp file. The Data template branch iterates over flow...

CVE-2026-48694

FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniperplugin/fastnetmonjuniper.php, the $IPATTACK variable received from argv1 is directly interpolated into Juniper NETCONF set-configuration commands at...

CVE-2026-48694

FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniperplugin/fastnetmonjuniper.php, the $IPATTACK variable received from argv1 is directly interpolated into Juniper NETCONF set-configuration commands at...

CVE-2026-48686

FastNetMon Community Edition through 1.2.9 contains a stack-based buffer overflow in the BGP NLRI Network Layer Reachability Information decoder. The function decodebgpsubnetencodingipv4raw in src/bgpprotocol.cpp reads prefixbitlength directly from the BGP packet line 99 without validating it is ...

CVE-2026-48696

FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689...

CVE-2026-48688

FastNetMon Community Edition through 1.2.9 contains multiple out-of-bounds reads in the BGP MPREACHNLRI IPv6 attribute decoder. The function decodempreachipv6 in src/bgpprotocol.cpp contains a TODO comment at line 156 explicitly acknowledging 'we should add sanity checks to avoid reads after...

FastNetMon security vulnerability

FastNetMon is a high-performance DDoS detector/sensor developed by Pavel Odintsov, based on multiple packet capture engines. Versions of FastNetMon prior to 1.2.9 contain security vulnerabilities; these vulnerabilities stem from the lack of boundary checks in the BGP MPREACHNLRI IPv6 attribute...

CVE-2026-48697: Improper Certificate Validation

FastNetMon Community Edition through 1.2.9 does not verify TLS certificates on outbound HTTPS connections. The executewebrequestsecure function in src/fastlibrary.cpp creates a boost::asio::ssl::context with tlsclient mode and calls setdefaultverifypaths to load CA certificates, but never calls...

FastNetMon security vulnerability

FastNetMon is a high-performance DDoS detector/sensor developed by Pavel Odintsov, based on multiple packet capture engines. Versions of FastNetMon prior to 1.2.9 contain security vulnerabilities. These vulnerabilities stem from the gRPC API server not enabling authentication mechanisms, which ma...