FKIE_CVE-2026-20797

Vulnerability from fkie_nvd - Published: 2026-02-27 02:16 - Updated: 2026-02-27 23:10
Severity ?
4.3 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A stack based buffer overflow exists in an API route of XWEB Pro version 1.12.1 and prior, enabling unauthenticated attackers to cause stack corruption and a termination of the program.
References
ics-cert@hq.dhs.govhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.jsonThird Party Advisory
ics-cert@hq.dhs.govhttps://webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdateProduct
ics-cert@hq.dhs.govhttps://www.cisa.gov/news-events/ics-advisories/icsa-26-057-10Third Party Advisory, US Government Resource
Impacted products
Vendor Product Version
copeland xweb_300d_pro_firmware *
copeland xweb_300d_pro -
copeland xweb_500d_pro_firmware *
copeland xweb_500d_pro -
copeland xweb_500b_pro_firmware *
copeland xweb_500b_pro -
To clipboard 

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      "value": "A stack based buffer overflow exists in an API route of XWEB Pro version\n 1.12.1 and prior, enabling unauthenticated attackers to cause stack \ncorruption and a termination of the program."
    },
    {
      "lang": "es",
      "value": "Existe un desbordamiento de b\u00fafer basado en pila en una ruta de API de XWEB Pro versi\u00f3n 1.12.1 y anteriores, lo que permite a atacantes no autenticados causar corrupci\u00f3n de pila y la terminaci\u00f3n del programa."
    }
  ],
  "id": "CVE-2026-20797",
  "lastModified": "2026-02-27T23:10:35.547",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
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        "impactScore": 1.4,
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary"
      },
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2026-02-27T02:16:18.343",
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      "tags": [
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          "value": "CWE-787"
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      "source": "nvd@nist.gov",
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}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.