CVE-2025-53843 Details
A stack-based buffer overflow in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2025-53843
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%).
0.02 Probability of exploitation activity being observed over the next 30 days (5th percentile)
CVSS score for CVE-2025-53843
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.
7.5 High
Products affected by CVE-2025-53843
FortiOS 7.4.2
FortiOS 7.4.3
FortiOS 7.4.4
FortiOS 7.0.16
FortiOS 7.2.10
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
More on DVE scores

CVE-2025-53843 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 8,393 12.64%
IN 5,751 8.66%
JP 3,562 5.37%
TH 2,470 3.72%
BR 2,137 3.22%
FR 2,059 3.10%
TW 2,015 3.04%
TR 1,899 2.86%
IT 1,684 2.54%
MX 1,590 2.39%

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CVE-2025-53843 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
Telecommunications 29,248 75.21%
Technology 5,361 13.79%
Business Services 829 2.13%
Consumer Goods 411 1.06%
Government/Politics 405 1.04%
Aerospace/Defense 383 0.98%
Manufacturing 323 0.83%
Utilities 314 0.81%
Education 219 0.56%
Finance 196 0.50%

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