RLSA-2026:24347 Important: frr security update

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD. Security Fixes: frr: denial of service via crafted FlowSpec component CVE-2026-37457 frr: denial of service via crafted BGP UPDATE message...

RockyLinux 10 : frr (RLSA-2026:24347)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:24347 advisory. frr: denial of service via crafted FlowSpec component CVE-2026-37457 frr: denial of service via crafted BGP UPDATE message CVE-2026-37459 Tenable has...

frr: denial of service via crafted FlowSpec component

A flaw was found in FRRouting FRR. A remote attacker can exploit an off-by-one out-of-bounds write vulnerability in the bgpflowspecopdecode function by supplying a specially crafted FlowSpec component. This issue can lead to a Denial of Service DoS...

RHEL 9 : frr10 (RHSA-2026:24370)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:24370 advisory. FRRouting is free software that manages TCP/IP based routing protocols. It takes a multi-server and multi- threaded approach to resolve the...

RHEL 8 : frr (RHSA-2026:24340)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:24340 advisory. FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP an...

RHEL 9 : frr (RHSA-2026:24371)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:24371 advisory. FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP an...

Oracle Linux 8 : frr (ELSA-2026-24340)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-24340 advisory. - Fix off-by-one error in FlowSpec operator array bounds checking CVE-2026-37457 Tenable has extracted the preceding description block directly from the Oracle...

ALSA-2026:24340 Important: frr security update

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD. Security Fixes: frr: denial of service via crafted FlowSpec component CVE-2026-37457 For more details about the security issues, including the...

CVE-2026-48689

FastNetMon Community Edition through 1.2.9 contains an off-by-one heap-based buffer overflow in the dynamicbinarybuffert class src/dynamicbinarybuffer.hpp. Five methods appenddynamicbuffer, appenddataaspointer, appenddataasobjectptr, memcpyfromptr, memcpyfromobjectptr use an incorrect bounds chec...

CVE-2026-48689

FastNetMon Community Edition through 1.2.9 contains an off-by-one heap-based buffer overflow in the dynamicbinarybuffert class src/dynamicbinarybuffer.hpp. Five methods appenddynamicbuffer, appenddataaspointer, appenddataasobjectptr, memcpyfromptr, memcpyfromobjectptr use an incorrect bounds chec...

CVE-2026-37457

FRRouting (FRR) stable/10.0 is affected by CVE-2026-37457 due to an off-by-one out-of-bounds write in bgp_flowspec_op_decode() within bgpd/bgp_flowspec_util.c. Attackers may cause a Denial of Service by supplying a crafted FlowSpec component. The available sources describe the vulnerability clear...

Juniper Networks Junos OS Input Validation Error Vulnerability (CNVD-2020-22958)

Juniper Networks Junos OS is a Juniper Networks network operating system for the company's hardware devices. The OS provides a secure programming interface and the Junos SDK. A security vulnerability exists in the Juniper Networks Junos OS implementation of BGP FlowSpec. An attacker could exploit...

CVE-2020-1613

A vulnerability in the BGP FlowSpec implementation may cause a Juniper Networks Junos OS device to terminate an established BGP session upon receiving a specific BGP FlowSpec advertisement. The BGP NOTIFICATION message that terminates an established BGP session is sent toward the peer device that...

High Performance DoS Analyzer: FastNetMon

High Performance DoS Analyzer FastNetMon – A high performance DoS/DDoS load analyzer built on top of multiple packet capture engines NetFlow, IPFIX, sFLOW, SnabbSwitch, netmap, PFRING, PCAP. What can we do? We can detect hosts in our networks sending or receiving large volumes of...