CVE-2026-39893 Details
Cacti is an open source performance and fault management framework. In versions 1.2.30 and prior, the rfilter request variable was concatenated into a RLIKE SQL clause without sanitization. The endpoint does not require authentication (graph viewing supports guest access via the configured guest user), so the SQLi was reachable pre-auth on installs with guest viewing enabled. This issue was fixed in version 1.2.31.
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Exploit prediction scoring system (EPSS) score for CVE-2026-39893
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%).
0.4 Probability of exploitation activity being observed over the next 30 days (33nd percentile)
CVSS score for CVE-2026-39893
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-2026-39893
Cacti 1.1.17
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-2026-39893 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
ID 355 32.78%
US 93 8.59%
BD 52 4.80%
NP 42 3.88%
UA 38 3.51%
IN 28 2.59%
BR 24 2.22%
GB 23 2.12%
RU 23 2.12%
RO 23 2.12%

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CVE-2026-39893 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 108 44.26%
Telecommunications 108 44.26%
Education 18 7.38%
Government/Politics 5 2.05%
Insurance 2 0.82%
Nonprofit/NGO 2 0.82%
Engineering 1 0.41%

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