Cyber Resilience

CVE-2024-50321

HighDDoS

Published: 12 November 2024

Published
12 November 2024
Modified
18 November 2024
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0783 92.2th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-50321 is a high-severity Infinite Loop (CWE-835) vulnerability in Ivanti Avalanche. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 7.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2024-50321 is an infinite loop vulnerability, tracked as CWE-835, that affects Ivanti Avalanche versions prior to 6.4.6. The flaw carries a CVSS 3.1 score of 7.5 and permits remote denial of service with no authentication or user interaction required.

A remote unauthenticated attacker can send crafted network requests to trigger the loop, resulting in high availability impact while leaving confidentiality and integrity unaffected.

The official Ivanti security advisory for the Q4 2024 release, which covers this CVE along with additional issues, directs administrators to upgrade to version 6.4.6 or later to resolve the exposure.

The associated EPSS score remains flat at 0.0783 with no material increase observed after disclosure.

EU & UK References

Vulnerability details

An infinite loop in Ivanti Avalanche before 6.4.6 allows a remote unauthenticated attacker to cause a denial of service.

CWE(s)

Related Threats

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

Affected Assets

ivanti
avalanche
≤ 6.4.6

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-835

Enables transfer to alternate site if an infinite loop at the primary renders processing unavailable.

addresses: CWE-835

Detects and mitigates infinite loops that produce sustained resource consumption.

References