CVE-2026-72712

Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an infinite loop, causing an out-of-memory condition that results in application crash.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72712.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "last_affected": "7.99"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "last_affected": "7.99"
                        }
                    ],
                    "source": "CPE_FIELD",
                    "strategy": "CPEApplicability"
                }
            ]
        },
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "last_affected": "7.99"
                        }
                    ],
                    "source": "DESCRIPTION"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/nmap/nmap

Affected ranges

Type

GIT

Repo

https://github.com/nmap/nmap

Events

Introduced

Fixed

7ef4ee030a0023fe22616387a000032e1a678b6a

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "7ef4ee030a0023fe22616387a000032e1a678b6a"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72712.json"