CVE-2026-39938
Cacti: Unauthenticated RCE on Graph Image
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-22 CWE-78 |
| Vendor | cacti |
| Product | cacti |
| Published | Jun 24, 2026 |
Stay Ahead of the Next One
Get instant alerts for cacti cacti
Be the first to know when new critical vulnerabilities affecting cacti cacti are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Cacti / cacti
< 1.2.31