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CVE-2021-20237

🗓️ 28 May 2021 10:42:23Reported by redhatType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 3 Media mentions👁 96 Views

An uncontrolled resource consumption (memory leak) flaw found in ZeroMQ's src/xpub.cpp in versions before 4.3.3 allows remote attackers to cause a denial of service

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Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-20237
28 May 202111:15
–attackerkb
astralinux
AstraLinux
Astra Linux – Vulnerability in Zeromq3
14 Sep 202612:41
–astralinux
bdu_fstec
BDU FSTEC
The vulnerability in the xpub.cpp component of the ZeroMQ messaging library, related to improper memory release before deleting the last reference, allows a violator to trigger a service failure.
13 Sep 202400:00
–bdu_fstec
cnnvd
CNNVD
ZeroMQ 资源管理错误漏洞
28 May 202100:00
–cnnvd
cnvd
CNVD
ZeroMQ Resource Management Error Vulnerability
31 May 202100:00
–cnvd
cvelist
Cvelist
CVE-2021-20237
28 May 202110:42
–cvelist
debiancve
Debian CVE
CVE-2021-20237
28 May 202110:42
–debiancve
euvd
EUVD
EUVD-2021-7676
3 Oct 202520:07
–euvd
mend
Mend
CVE-2021-20237
28 May 202110:42
–mend
nvd
NVD
CVE-2021-20237
28 May 202111:15
–nvd
Rows per page
NVD
Vulners
Node
zeromqlibzmqRange4.2.0–4.3.3
[
  {
    "product": "zeromq",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "zeromq 4.3.3"
      }
    ]
  }
]

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17 Jun 2026 03:33Current
8.2High risk
Vulners AI Score8.2
CVSS 24.3
CVSS 3.17.5
EPSS0.01694
96