EVerest’s Integer Overflow and Signed to Unsigned conversion lead to either stack buffer overflow or infinite loop_CVE-2025-68137

{
    "lastseen": "",
    "description": "EVerest is an EV charging software stack. Prior to version 2025.10.0, an integer overflow occurring in `SdpPacket::parse_header()` allows the current buffer length to be set to 7 after a complete header of size 8 has been read. The remaining length to read is computed using the current length subtracted by the header length which results in a negative value. This value is then interpreted as `SIZE_MAX` (or slightly less) because the expected type of the argument is `size_t`. Depending on whether the server is plain TCP or TLS, this leads to either an infinite loop or a stack buffer overflow. Version 2025.10.0 fixes the issue.",
    "published": "2026-01-21T19:20:09.059Z",
    "modified": "2026-01-21T19:51:26.058Z",
    "type": "cve",
    "title": "EVerest's Integer Overflow and Signed to Unsigned conversion lead to either stack buffer overflow or infinite loop",
    "source": "GitHub_M",
    "references": "https://github.com/EVerest/everest-core/security/advisories/GHSA-7qq4-q9r8-wc7w",
    "id": "CVE-2025-68137",
    "bulletinFamily": "",
    "cwe": [
        "CWE-120",
        "CWE-835"
    ],
    "cvelist": null,
    "sourceData": "EVerest everest-core < 2025.10.0",
    "sourceHref": "",
    "cvss": {
        "score": 8.4,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "everest-core",
    "version": "< 2025.10.0",
    "vendor": "EVerest",
    "ai_description": "",
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    "ai_score": 0
}