CVE-2026-20797

🗓️ 27 Feb 2026 01:03:18Reported by icscertType

CVE-2026-20797: A stack based overflow in XWEB Pro API enables unauthenticated termination.

Reporter	Title	Published	Views	Family All 9
ATTACKERKB	CVE-2026-20797	27 Feb 202601:03	–	attackerkb
Circl	CVE-2026-20797	26 Feb 202611:00	–	circl
CNNVD	Copeland多款产品缓冲区错误漏洞	27 Feb 202600:00	–	cnnvd
Cvelist	CVE-2026-20797 Copeland XWEB and XWEB Pro Stack-based Buffer Overflow	27 Feb 202601:03	–	cvelist
EUVD	EUVD-2026-8972	27 Feb 202603:30	–	euvd
NVD	CVE-2026-20797	27 Feb 202602:16	–	nvd
Positive Technologies	PT-2026-22271	27 Feb 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-20797	28 Feb 202601:55	–	redhatcve
Vulnrichment	CVE-2026-20797 Copeland XWEB and XWEB Pro Stack-based Buffer Overflow	27 Feb 202601:03	–	vulnrichment

NVD

Vulners

Node

copeland xweb_300d_pro_firmwareRange≤1.12.1

AND

copeland xweb_300d_proMatch-

Node

copeland xweb_500d_pro_firmwareRange≤1.12.1

AND

copeland xweb_500d_proMatch-

Node

copeland xweb_500b_pro_firmwareRange≤1.12.1

AND

copeland xweb_500b_proMatch-

[
  {
    "defaultStatus": "unaffected",
    "product": "Copeland XWEB 300D PRO",
    "vendor": "Copeland",
    "versions": [
      {
        "lessThanOrEqual": "1.12.1",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Copeland XWEB 500D PRO",
    "vendor": "Copeland",
    "versions": [
      {
        "lessThanOrEqual": "1.12.1",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Copeland XWEB 500B PRO",
    "vendor": "Copeland",
    "versions": [
      {
        "lessThanOrEqual": "1.12.1",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

Source	Link
cisa	www.cisa.gov/news-events/ics-advisories/icsa-26-057-10
github	www.github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-057-10.json
webapps	www.webapps.copeland.com/Dixell/Pages/SystemSoftwareUpdate

17 Jun 2026 10:17Current

5.7Medium risk

Vulners AI Score5.7

CVSS 3.14.3 - 9.8

EPSS0.00777

SSVC