What is CVE-2019-12323?

CVE-2019-12323 is a high-severity vulnerability in Hostingcontroller Hc10, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2019-06-24.

How severe is CVE-2019-12323?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Hostingcontroller Hc10

CVE-2019-12323

The HC.Server service in Hosting Controller HC10 10.14 allows an Invalid Pointer Write DoS.

Vulnerability class: Buffer Overflow

Published 2019-06-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.088 (95.1th percentile), scored 2026-10-26.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.088 · newest: 0.088 · change: 0.000

Affected products

Hostingcontroller Hc10 — versions 10.14

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

hyp3rlinx.altervista.org (Exploit, Third Party Advisory)
help.hostingcontroller.com/OnlineHelp/default.aspx (Release Notes, Vendor Advisory)
seclists.org/fulldisclosure/2019/Jun/28 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-12323?: CVE-2019-12323 is a high-severity vulnerability in Hostingcontroller Hc10, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2019-06-24.
How severe is CVE-2019-12323?: High severity. CVSS v3 base score is 7.5 out of 10.