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Clickhouse CVE-2019-16536

HIGH
Classic Buffer Overflow (CWE-120)
2025-05-21 browser-security@yandex-team.ru
Buffer Overflow Clickhouse
8.2
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
8.2 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:43 vuln.today
CVE Published
May 21, 2025 - 08:15 nvd
HIGH 8.2

DescriptionCVE.org

Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3.

AnalysisAI

Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3. Affected products include: Clickhouse. Version information: before 19.14.3.3..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

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Same weakness CWE-120 – Classic Buffer Overflow

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CVE-2019-16536 vulnerability details – vuln.today
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