Lucene search
+L

CVE-2021-38691

🗓️ 14 Jan 2022 01:00:23Reported by qnapType 
cve
 cve
🔗 web.nvd.nist.gov👁 88 Views

A stack buffer overflow vulnerability affecting QNAP devices running QVR Elite, QVR Pro, QVR Guard, allowing arbitrary code execution

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-38691
13 Jan 202201:49
–attackerkb
bdu_fstec
BDU FSTEC
QNAP QVR Elite Plugin Heap Buffer Overflow
20 Oct 202200:00
–bdu_fstec
cnnvd
CNNVD
Qnap Qvr Elite 缓冲区错误漏洞
14 Jan 202200:00
–cnnvd
cvelist
Cvelist
CVE-2021-38691 Stack Overflow Vulnerability in QVR Elite, QVR Pro and QVR Guard
14 Jan 202201:00
–cvelist
euvd
EUVD
EUVD-2021-25130
7 Oct 202500:30
–euvd
nvd
NVD
CVE-2021-38691
14 Jan 202201:15
–nvd
osv_cve
osv_cve
CVE-2021-38691
14 Jan 202201:15
–osv_cve
prion
Prion
Stack overflow
14 Jan 202201:15
–prion
ptsecurity
Positive Technologies
PT-2022-5120
13 Jan 202200:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2021-38691: Buffer Copy without Checking Size of Input
14 Jan 202200:00
–rapid7
NVD
Vulners
Node
OR
qnapqvr_eliteRange<2.1.4.0
qnapqvr_guardRange<2.1.3.0
qnapqvr_proRange<2.1.3.0
[
  {
    "platforms": [
      "QuTS hero h5.0.0"
    ],
    "product": "QVR Elite",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.4.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QuTS hero h4.5.4"
    ],
    "product": "QVR Elite",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.4.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QTS 5.0.0"
    ],
    "product": "QVR Elite",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.4.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QTS 4.5.4"
    ],
    "product": "QVR Elite",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.4.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QTS 4.5.4"
    ],
    "product": "QVR Pro",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.3.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QTS 5.0.0"
    ],
    "product": "QVR Pro",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.3.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QTS 4.5.4"
    ],
    "product": "QVR Guard",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.3.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QTS 5.0.0"
    ],
    "product": "QVR Guard",
    "vendor": "QNAP Systems Inc.",
    "versions": [
      {
        "lessThan": "2.1.3.0 (2021/12/06)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

17 Jun 2026 04:02Current
9.4Critical risk
Vulners AI Score9.4
CVSS 27.5
CVSS 3.18.1 - 9.8
EPSS0.01296
88