{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-52859",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-08T18:41:27.725Z",
        "datePublished": "2026-06-11T18:33:09.886Z",
        "dateUpdated": "2026-06-11T19:38:46.065Z"
    },
    "containers": {
        "cna": {
            "title": "Vim: Out-of-bounds Read in Terminal Screen Snapshot",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-125",
                            "lang": "en",
                            "description": "CWE-125: Out-of-bounds Read",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/vim/vim/security/advisories/GHSA-47gw-8gc3-mgcm",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/vim/vim/security/advisories/GHSA-47gw-8gc3-mgcm"
                },
                {
                    "name": "https://github.com/vim/vim/commit/63680c6d3d52477817b49cd1a66e7aabe8a7aa19",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vim/vim/commit/63680c6d3d52477817b49cd1a66e7aabe8a7aa19"
                },
                {
                    "name": "https://github.com/vim/vim/releases/tag/v9.2.0565",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vim/vim/releases/tag/v9.2.0565"
                }
            ],
            "affected": [
                {
                    "vendor": "vim",
                    "product": "vim",
                    "versions": [
                        {
                            "version": "< 9.2.0565",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-06-11T18:33:09.886Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Vim is an open source, command line text editor. Prior to version 9.2.0565, the update_snapshot() function in src/terminal.c copies the visible terminal screen into the scrollback buffer when a snapshot is taken. For each screen cell it walks the cell's chars[] array with no upper bound, stopping only when it encounters a NUL terminator. When a cell legitimately fills all VTERM_MAX_CHARS_PER_CELL (6) slots — a base character plus five combining marks — the bundled libvterm returns the array without a terminating NUL, so the loop reads past the fixed six-element array and appends the out-of-bounds values to a buffer reserved for only six characters. A program whose output is rendered inside a :terminal window can trigger this with a short byte sequence and no Vim scripting, leading to a crash. This issue has been patched in version 9.2.0565."
                }
            ],
            "source": {
                "advisory": "GHSA-47gw-8gc3-mgcm",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-11T19:35:19.075882Z",
                                "id": "CVE-2026-52859",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-11T19:38:46.065Z"
                }
            }
        ]
    }
}