Cyber Resilience

CVE-2024-11639

Critical

Published: 10 December 2024

Published
10 December 2024
Modified
17 January 2025
KEV Added
Patch
CVSS Score v3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0813 92.4th percentile
Risk Priority 25 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-11639 is a critical-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Ivanti Cloud Services Appliance. Its CVSS base score is 10.0 (Critical).

Operationally, ranked in the top 7.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2024-11639 is an authentication bypass vulnerability affecting the admin web console of Ivanti Cloud Services Application (CSA) versions prior to 5.0.3. The flaw, assigned a CVSS score of 10.0 and linked to CWE-288 and CWE-306, permits remote attackers to circumvent authentication controls entirely.

A remote unauthenticated attacker can exploit the issue over the network to obtain full administrative access to the console, resulting in complete compromise of confidentiality, integrity, and availability within the affected scope.

The referenced Ivanti security advisory addresses CVE-2024-11639 alongside two related issues and directs customers to upgrade to version 5.0.3 or later for remediation.

EPSS for the vulnerability rose from a low baseline to a peak of 0.3429 on 2025-12-11 before receding to the current value of 0.0813, indicating a period of heightened exploitation interest following disclosure.

EU & UK References

Vulnerability details

An authentication bypass in the admin web console of Ivanti CSA before 5.0.3 allows a remote unauthenticated attacker to gain administrative access

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

ivanti
cloud services appliance
≤ 5.0.3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-306 CWE-288

Mandates additional authentication for access under defined conditions, ensuring critical or high-risk functions are not left without authentication.

addresses: CWE-306 CWE-288

Identity providers mandate authentication for functions that would otherwise lack it.

addresses: CWE-306 CWE-288

Requires authentication for non-organizational users, preventing access to critical functions without proper identification and authentication.

addresses: CWE-306

Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.

addresses: CWE-306

Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.

addresses: CWE-288

Authorizing remote access reduces the ability to bypass authentication via unauthorized alternate remote channels.

addresses: CWE-306

Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.

addresses: CWE-306

Guarantees critical functions are protected by mandatory invocation of the access control mechanism.

References