CVE-2026-40079 Details
Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Command Injection due to lack of sanitization in the escape_command() function. The escape_command() function at lib/rrd.php is a no-op: it returns $command unchanged. The command line built by rrdtool_function_graph() is passed through this function and then to shell_exec($full_commandline). The risk is in __rrd_execute() where text_format values from graph templates (which may contain host variable substitutions) reach shell_exec without adequate escaping. This issue has been addressed in version 1.2.31.
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Exploit prediction scoring system (EPSS) score for CVE-2026-40079
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
1.11 Probability of exploitation activity being observed over the next 30 days (62nd percentile)
CVSS score for CVE-2026-40079
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2026-40079
Cacti 1.0.1
Cacti 1.0.3
Cacti 1.0.4
Cacti 1.1.10
Cacti 1.1.12
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-40079 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
ID 227 31.57%
US 58 8.07%
NP 33 4.59%
BD 33 4.59%
UA 23 3.20%
IN 19 2.64%
RU 16 2.23%
BR 15 2.09%
GB 15 2.09%
PK 14 1.95%

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CVE-2026-40079 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 79 49.69%
Telecommunications 68 42.77%
Education 7 4.40%
Government/Politics 2 1.26%
Nonprofit/NGO 1 0.63%
Engineering 1 0.63%
Insurance 1 0.63%

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