Connect Secure
CVE-2025-0282
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Stack buffer bounds checking
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Critical risk (CVSS 9.0, EPSS 94.1%). Coming just months after the January 2024 Ivanti exploitation wave, this second major vulnerability further eroded trust in Ivanti VPN products. Many organizations were still remediating the first wave when this was disclosed. |
| Exploit ScenarioDerived | An attacker sends crafted requests to an Ivanti VPN appliance that trigger the stack overflow. Buffer overflow exploitation provides root-level code execution, enabling deployment of persistent implants, credential harvesting, and network access. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Ivanti Connect Secure, Policy Secure, and Neurons for ZTA contain a stack-based buffer overflow allowing unauthenticated remote code execution, the second major Ivanti VPN zero-day in twelve months.
Earlier versions of this analysis (1)
A stack-based buffer overflow in Ivanti Connect Secure, Policy Secure, and Neurons for ZTA gateways enables unauthenticated remote code execution. This was the second wave of critical Ivanti VPN vulnerabilities in a year.
RemediationAI
Apply Ivanti security updates. Consider migrating to alternative VPN solutions given the repeated critical vulnerabilities. Factory reset before patching. Rotate all credentials.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The CWE-121 stack-based buffer overflow in the VPN appliance's request processing allows unauthenticated attackers to overwrite the stack and achieve code execution. The direct memory corruption attack doesn't require authentication or chaining with other vulnerabilities.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionNVD
A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.5, Ivanti Policy Secure before version 22.7R1.2, and Ivanti Neurons for ZTA gateways before version 22.7R2.3 allows a remote unauthenticated attacker to achieve remote code execution.
Executive ViewAI
Organizations using Ivanti Connect Secure face critical risk from CVE-2025-0282, a stack-based buffer overflow vulnerability rated CVSS 9.0. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. This vulnerability is actively exploited in the wild (KEV-listed) and requires immediate remediation. Immediate patching is required per CISA KEV mandate.
Apply vendor patch. If immediate patching is not feasible: (1) Enable ASLR and DEP where available; (2) Implement network segmentation; (3) Monitor for exploitation indicators.
Threat Intelligence Overview
NVD
CVE.org
CISA KEV
EPSS
Exploit-DB
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than it was allocated to hold.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)NVD
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