How severe is CVE-2023-38036?

CVE-2023-38036 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-38036 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38036?

CVE-2023-38036 affects Ivanti Avalanche. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-38036?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2023-38036 have an EU (EUVD) identifier?

Yes. CVE-2023-38036 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-41863.

When was CVE-2023-38036 published?

CVE-2023-38036 was published on 2025-07-12 and last updated on 2026-06-17.

CVE-2023-38036

CVE-2023-38036 is a critical-severity vulnerability in Ivanti Avalanche with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-41863
Weakness: CWE-120
Affected product: Ivanti Avalanche
Published: 2025-07-12
Last modified: 2026-06-17

Description

A security vulnerability within Ivanti Avalanche Manager before version 6.4.1 may allow an unauthenticated attacker to create a buffer overflow that could result in service disruption or arbitrary code execution.

Frequently asked questions

What is CVE-2023-38036?: A security vulnerability within Ivanti Avalanche Manager before version 6.4.1 may allow an unauthenticated attacker to create a buffer overflow that could result in service disruption or arbitrary code execution.
How severe is CVE-2023-38036?: CVE-2023-38036 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-38036 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38036?: CVE-2023-38036 affects Ivanti Avalanche. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-38036?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-38036 have an EU (EUVD) identifier?: Yes. CVE-2023-38036 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-41863.
When was CVE-2023-38036 published?: CVE-2023-38036 was published on 2025-07-12 and last updated on 2026-06-17.

References

https://forums.ivanti.com/s/article/Security-Advisory-Avalanche-CVE-2023-38036

Affected products (1)

cpe:2.3:a:ivanti:avalanche:*:*:*:*:*:*:*:*

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