Vulnerability-Lookup

rlsa-2026:24370

Vulnerability from osv_rocky

Published

2026-06-11 12:03

Modified

2026-06-25 12:06

Summary

Important: frr10 security update

Details

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.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:24370	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2464548	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2466513	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "frr10",
        "purl": "pkg:rpm/rocky-linux/frr10?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "AppStream"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:10.4.3-3.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "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.\n\nSecurity Fix(es):\n\n* frr: denial of service via crafted FlowSpec component (CVE-2026-37457)\n\n* frr: denial of service via crafted BGP UPDATE message (CVE-2026-37459)\n\nFor 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.",
  "id": "RLSA-2026:24370",
  "modified": "2026-06-25T12:06:33.025397Z",
  "published": "2026-06-11T12:03:24.031456Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:24370"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464548"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466513"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: frr10 security update",
  "upstream": [
    "CVE-2026-37457",
    "CVE-2026-37459"
  ]
}

CVE-2026-37457 (GCVE-0-2026-37457)

Vulnerability from cvelistv5 – Published: 2026-05-01 00:00 – Updated: 2026-07-15 01:02

Summary

An off-by-one out-of-bounds write vulnerability in the bgp_flowspec_op_decode() function (bgpd/bgp_flowspec_util.c) of FRRouting (FRR) stable/10.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted FlowSpec component.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-787 - Out-of-bounds Write

Assigner

mitre

References

8 references

URL	Tags
https://github.com/FRRouting/frr/commit/0e6882bc7…
https://access.redhat.com/security/cve/CVE-2026-37457	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2464548	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:24347	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24340	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24371	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24370	vendor-advisoryx_refsource_REDHAT

Impacted products

4 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:10.4.4-1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:7.5.1-24.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:10.4.3-3.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:8.5.3-13.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9

Show details on NVD website

JSON

To clipboard

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CVE-2026-37459 (GCVE-0-2026-37459)

Vulnerability from cvelistv5 – Published: 2026-05-04 00:00 – Updated: 2026-07-15 01:02

Summary

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-400 - Uncontrolled Resource Consumption
CWE-191 - Integer Underflow (Wrap or Wraparound)

Assigner

mitre

References

6 references

URL	Tags
https://github.com/FRRouting/frr/commit/693a2e026…
https://access.redhat.com/security/cve/CVE-2026-37459	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2466513	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:24347	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:24370	vendor-advisoryx_refsource_REDHAT

Impacted products

4 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:10.4.4-1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:10.4.3-3.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Show details on NVD website

JSON

To clipboard

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              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-37459.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:24347"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:24370"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:24347: Red Hat Enterprise Linux AppStream (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:24370: Red Hat Enterprise Linux AppStream (v. 9)"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-05-04T19:02:45.777Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-05-04T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "frr: denial of service via crafted BGP UPDATE message",
        "workarounds": [
          {
            "lang": "en",
            "value": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."
          }
        ],
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-04T17:35:56.251Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-37459",
    "datePublished": "2026-05-04T00:00:00.000Z",
    "dateReserved": "2026-04-06T00:00:00.000Z",
    "dateUpdated": "2026-07-15T01:02:29.780Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

rlsa-2026:24370

Vulnerability from osv_rocky

CVE-2026-37457 (GCVE-0-2026-37457)

CVE-2026-37459 (GCVE-0-2026-37459)

Tags

Sightings

Nomenclature