CVE-2025-0282 — Connect Secure
CRITICALCVE-2025-0282 is a critical-severity (CVSS 9) CWE-121 vulnerability in ivanti connect secure. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-01-08) and has been used in ransomware campaigns — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
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…
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2025-01-08 — including use in ransomware campaigns. Federal agencies were required to remediate by 2025-01-15.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2025-0282.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2025-0282 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 394,415 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
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.
Affected Products
connect secureivantineurons for zero-trust accessivantipolicy secureivantiResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Ivanti Connect Secure 22.7R2.5 - Remote Code Execution (RCE)
by Abdualhadi khalifa · Apr 15, 2025
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every ivanti connect secure deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2025-0282 yet — track the ivanti connect secure advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
How to detect CVE-2025-0282
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2025-0282 -u https://target- Template
- Ivanti Connect Secure - Stack-based Buffer Overflow
- Severity
- critical
- Impact
- Unauthenticated attackers can exploit a stack-based buffer overflow to execute arbitrary code remotely on Ivanti Connect Secure devices, potentially compromising VPN infrastructure and accessing all connected networks.
- Remediation
- Upgrade to Ivanti Connect Secure version 22.7R2.5, Ivanti Policy Secure version 22.7R1.2, or Ivanti Neurons for ZTA version 22.7R2.3 or later.
Template by ProjectDiscovery nuclei-templates (ritikchaddha), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2025-0282 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.