What is CVE-2018-19517?

CVE-2018-19517 is a medium-severity vulnerability in Sysstat Project, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2018-11-24.

How severe is CVE-2018-19517?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Out-of-bounds Read in Sysstat Project

CVE-2018-19517

An issue was discovered in sysstat 12.1.1. The remap_struct function in sa_common.c has an out-of-bounds read during a memset call, as demonstrated by sadf.

Vulnerability class: Buffer Overflow

Published 2018-11-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Sysstat Project — versions 12.1.1

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

github.com/sysstat/sysstat/issues/199 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-19517?: CVE-2018-19517 is a medium-severity vulnerability in Sysstat Project, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2018-11-24.
How severe is CVE-2018-19517?: Medium severity. CVSS v3 base score is 5.5 out of 10.