No exploitation reportedFix available

CVE-2024-36136

Q: Is CVE-2024-36136 actively exploited?

Active exploitation of CVE-2024-36136 has not been confirmed. Its EPSS score was 2.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-36136?

CVE-2024-36136 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2024-08-14
Fixed in6.4.4
WeaknessCWE-193

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2024-08-1403:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-36136?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-36136?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

CISA-ADP · NVD

Ivanti avalanche

Branch	Affected	Fixed in	Source
6.x	≥ 6.3.1, < 6.4.4	6.4.4	CISA-ADP
6.3	= 6.3.1	no fix published	NVD
6.3	= 6.3.1.1507	no fix published	NVD
6.3	= 6.3.2	no fix published	NVD
6.3	= 6.3.2.3490	no fix published	NVD
6.3	= 6.3.3	no fix published	NVD
6.3	= 6.3.3.101	no fix published	NVD
6.3	= 6.3.4	no fix published	NVD
6.3	= 6.3.4.153	no fix published	NVD
6.4	= 6.4.0	no fix published	NVD
6.4	= 6.4.1	no fix published	NVD
6.4	= 6.4.1.207	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Ivanti avalanche to 6.4.4

Advisories and patches

forums.ivanti.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-08-14
OpenCVESSVC decisionnone—
NVDCVSS 3.17.5read 2026-10-23
CNACVSS 3.07.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-1932024-08-14
NVDweakness (CWE)CWE-193read 2026-10-23
FIRST EPSSEPSS score2.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2024-08-14
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2024-36136?

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.

Is CVE-2024-36136 actively exploited?

Active exploitation of CVE-2024-36136 has not been confirmed. Its EPSS score was 2.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-36136?

CVE-2024-36136 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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