The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0761 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2026-37459:
    An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of     Service (DoS) via supplying a crafted BGP UPDATE message.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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 current complexity of the Internet.  FRRouting supports BGP4, OSPFv2,     OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD.  FRRouting is a fork of Quagga.

    Security Fix(es):

    * frr: denial of service via crafted FlowSpec component (CVE-2026-37457)

    * frr: denial of service via crafted BGP UPDATE message (CVE-2026-37459)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:24370 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 extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of     Service (DoS) via supplying a crafted BGP UPDATE message. (CVE-2026-37459)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8376-1 advisory.

    It was discovered that FRR incorrectly handled certain OSPF Traffic Engineering and Segment Routing TLVs.
    An attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service.
    (CVE-2026-28532)

    It was discovered that FRR incorrectly handled certain BGP FlowSpec components. An attacker could possibly     use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2026-37457)

    It was discovered that FRR did not properly validate certain MP_REACH_NLRI messages. An authenticated user     could possibly use this issue to cause FRR to crash, resulting in a denial of service. (CVE-2026-37458)

    It was discovered that FRR incorrectly handled processing certain BGP UPDATE messages. An attacker could     possibly use this issue to cause FRR to crash, resulting in a denial of service. This issue only affected     Ubuntu 25.04 and Ubuntu 25.10. (CVE-2026-37459)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
330802	TencentOS Server 4: frr (TSSA-2026:0761)	Nessus	Tencent Local Security Checks	2026/7/29	2026/7/29	high
319704	RHEL 9 : frr10 (RHSA-2026:24370)	Nessus	Red Hat Local Security Checks	2026/6/8	2026/6/8	high
324819	AlmaLinux 9 : frr10 (ALSA-2026:24370)	Nessus	Alma Linux Local Security Checks	2026/7/2	2026/7/2	high
312602	Linux Distros Unpatched Vulnerability : CVE-2026-37459	Nessus	Misc.	2026/5/6	2026/11/5	high
318637	Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : FRR vulnerabilities (USN-8376-1)	Nessus	Ubuntu Local Security Checks	2026/6/4	2026/6/4	medium

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