CVE-2026-37458

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Source
https://cve.org/CVERecord?id=CVE-2026-37458
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37458.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-37458
Downstream
Related
Published
2026-05-04T00:00:00Z
Modified
2026-09-10T18:26:53Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Missing input validation in the MP_REACH_NLRI component of FRRouting (FRR) stable/10.0 to stable/10.6 allows authenticated attackers to cause a Denial of Service (DoS) via supplying a crafted UPDATE message.

Database specific 
{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37458.json"
}
References

Affected packages

Git / github.com/frrouting/frr

Affected ranges

Type
GIT
Repo
https://github.com/frrouting/frr
Events
Introduced
d5bec7b08149e9811013ba771ae6d557b396b380
Fixed
8102a8aeceb9f86fdfe1f80cd77080522bab69c8
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "10.0"
        },
        {
            "last_affected": "10.6.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

base_10.*
base_10.1
base_10.2
base_10.3
base_10.4
base_10.5
base_10.6
frr-10.*
frr-10.0-dev
frr-10.2-dev
frr-10.3-dev
frr-10.4-dev
frr-10.5-dev
frr-10.6.0-dev
frr-10.7.0-dev

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37458.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "168631303741082090576389693271968986211",
            "length": 5768
        },
        "id": "CVE-2026-37458-dfa6f203",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/frrouting/frr/commit/8102a8aeceb9f86fdfe1f80cd77080522bab69c8",
        "target": {
            "file": "bgpd/bgp_attr.c",
            "function": "bgp_mp_reach_parse"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "40734328636934815047096795198079622677",
                "162827212702728829488758647699129717797",
                "203087243239154061508345748634141124641",
                "57678395295957339314315898258760419685"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-37458-fdac10ce",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/frrouting/frr/commit/8102a8aeceb9f86fdfe1f80cd77080522bab69c8",
        "target": {
            "file": "bgpd/bgp_attr.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-04T08:05:23Z"