An off-by-one error in WLInfoRailService in Ivanti Avalanche 6.3.1 allows a remote unauthenticated attacker to crash the service, resulting…

published 2024-08-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-35894

cvss: 7.5; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.2%; EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits: 0; none known

An off-by-one error in WLInfoRailService in Ivanti Avalanche 6.3.1 allows a remote unauthenticated attacker to crash the service, resulting in a DoS.

Patch / fix

fixed in 1

Ivanti Avalanche 6.4.4

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-08-14)

Exploit prediction

2.19% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Ivanti Avalanche

Classification

Weakness

CWE-193 Off-by-one Error

References

forums.ivanti.com /s/article/Security-Advisory-Ivanti-Avalanche-6-4-4-CVE-2024-38652-CVE-2024-38653-CVE-2024-36136-CVE-2024-3739
vendor-advisory

Sources

CVE List CVE-2024-36136
NVD CVE-2024-36136

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary