PatchTheCVECVE-2019-16536: Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.
CVE-2019-16536 is a high-severity flaw (CVSS 8.8) affecting clickhouse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.9% (top 40%) |
| CISA exploited list | No |
| Weakness | CWE-120 |
| Published | 2025-05-21 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-16536?
clickhouse: upgrade to 19.14.3.3. Exact commands for each OS are on this page.
Is CVE-2019-16536 being exploited?
CVE-2019-16536 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-16536 affect?
CVE-2019-16536 affects clickhouse. Severity is high (CVSS 8.8). Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3.
How urgent is CVE-2019-16536?
Priority 46/100. High severity
Software pages
Related CVEs
- CVE-2024-41436 HIGH 7.5 DOWNGRADE ClickHouse v24.3.3.102 was discovered to contain a buffer overflow via the component DB::evaluateConstantExpre