CVE-2019-16536: Stack overflow leading to DoS can be triggered by a malicious authenticated client.
Analyzed
AliasesUBUNTU-CVE-2019-16536DEBIAN-CVE-2019-16536
Published 21-05-2025Last modified 21-05-2025
Vulnerability summary
CVE-2019-16536 is a high (CVSS 8.8) Classic Buffer Overflow vulnerability in clickhouse. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 59.3% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.90%
0%100%
Low · +0.04 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 21-05-2025PublishedVulnerability first disclosed.
- 21-05-2025Last modifiedVulnerability information updated.
Description
Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3.
CVSS metrics
6 scores · 4 sources · 2 versionsHigh 8.2Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:HSourcesAll 3 agree
- NVDNIST8.2HighCVSS: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
- OSV · UbuntuEcosystem advisory · calculated8.2HighCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
High 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
Increase +0.04 pp
From 0.86% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Clickhouse2 products
- clickhouse< 19.14.3.3
- db19.14.3.3
Debian1 product
- clickhouseAll versions (No fix recorded)
Ubuntu1 product
- clickhouseAll versions (No fix recorded)
3 vendors · 4 products
