Cyber Resilience

CVE-2024-37401

Memory Safety in Ivanti Connect Secure ≤ 22.7

Published
12 December 2024
Modified
02 July 2025
Patch / advisory
CVSS Score v3 7.5
Click a component to see what it means
Raw vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.015 71th percentile
Risk Priority 65 floored blend · peak EPSS

Summary

CVE-2024-37401 is a high-severity Out-of-bounds Read (CWE-125) vulnerability in Ivanti Connect Secure. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 29% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

An out-of-bounds read vulnerability, tracked as CVE-2024-37401 and assigned CWE-125, affects the IPsec component of Ivanti Connect Secure in versions prior to 22.7R2.1. The flaw carries a CVSS 3.0 base score of 7.5 with a vector of AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, reflecting a network-reachable condition that impacts availability without requiring authentication or user interaction.

A remote unauthenticated attacker can trigger the out-of-bounds read by sending crafted IPsec traffic to an affected system, resulting in a denial-of-service condition that disrupts the service while leaving confidentiality and integrity unaffected.

The December 2024 Ivanti security advisory addresses this issue alongside other CVEs in Connect Secure and Policy Secure, directing administrators to apply the 22.7R2.1 update or later releases to remediate the flaw.

The associated EPSS score has remained flat at 0.0766 since disclosure, indicating no material rise in observed exploitation interest.

EU & UK References

Vulnerability Data

An out-of-bounds read in IPsec of Ivanti Connect Secure before version 22.7R2.1 allows a remote unauthenticated attacker to cause a denial of service.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-5456Same product: Ivanti Connect Secure
CVE-2024-37400Same product: Ivanti Connect Secure
CVE-2024-38649Same product: Ivanti Connect Secure
CVE-2024-37377Same product: Ivanti Connect Secure
CVE-2024-47909Same product: Ivanti Connect Secure
CVE-2024-47905Same product: Ivanti Connect Secure
CVE-2024-9420Same product: Ivanti Connect Secure
CVE-2024-22053Same product: Ivanti Connect Secure
CVE-2024-21894Same product: Ivanti Connect Secure
CVE-2024-22023Same product: Ivanti Connect Secure

Affected Assets

ivanti
connect secure
22.7 · ≤ 22.7
ivanti
policy secure
22.7 · ≤ 22.7

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation directly finds out-of-bounds read flaws through static analysis, fuzzing, and dynamic bounds checks.

Secure engineering principles require bounds checking and memory-safe constructs that stop out-of-bounds reads from being introduced.

Process isolation confines the effects of an out-of-bounds read to the compromised process.

Input validation rejects malformed indices or lengths that would otherwise cause reads outside buffer bounds.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

A.8.15 Logging partial match
finds

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

prevents

Secure development life cycle mandates input validation and bounds checking that directly prevent out-of-bounds reads.

prevents

Application security requirements include explicit bounds and memory-safety specifications that mitigate buffer over-reads.

prevents

Secure system architecture and engineering principles require memory-safe design patterns and runtime protections against out-of-bounds access.

prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References