Vulnerability in Cacti

CVE-2026-39894

Cacti is an open source performance and fault management framework. In versions 1.2.30 and below, the locale-dependent decimal formatting in rrdtool_function_update() can corrupt RRDtool metric values. The rrdtool_function_update() functio…

CVSS v3 metric

CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

  • Cacti — versions < 1.2.31

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-39894?
CVE-2026-39894 is a low-severity vulnerability in Cacti, classified under CWE-474. CVSS score: 2.9/10. Published 2026-06-24.
How severe is CVE-2026-39894?
Low severity. CVSS v3 base score is 2.9 out of 10.