CVE-2026-39938CWE-22CWE-78

Cacti: Unauthenticated RCE on Graph Image

Critical · published June 24, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
52.3
In the wild
Unconfirmed
What it is

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have unauthenticated LFI through graph_theme and rrdtool IPC serialization hardening. This issue has been resolved in version 1.2.31.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00693 · 52.3th percentile
Weaknesses
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-06-24T22:41Z
EPSS history
Timeline
  • 24 JUN 22:41Z
    Cacti: Unauthenticated RCE on Graph Image
    cvelistv5