How severe is CVE-2024-23527?

CVE-2024-23527 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2024-23527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23527?

CVE-2024-23527 affects Ivanti Avalanche. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-23527?

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

Does CVE-2024-23527 have an EU (EUVD) identifier?

Yes. CVE-2024-23527 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21022.

When was CVE-2024-23527 published?

CVE-2024-23527 was published on 2024-04-25 and last updated on 2026-06-17.

CVE-2024-23527

CVE-2024-23527 is a high-severity vulnerability in Ivanti Avalanche with a CVSS 3.x base score of 7.5. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-21022
Weakness: CWE-125
Affected product: Ivanti Avalanche
Published: 2024-04-25
Last modified: 2026-06-17

Description

An out-of-bounds read vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3, in certain conditions can allow an unauthenticated remote attacker to read sensitive information in memory.

Frequently asked questions

What is CVE-2024-23527?: An out-of-bounds read vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3, in certain conditions can allow an unauthenticated remote attacker to read sensitive information in memory.
How severe is CVE-2024-23527?: CVE-2024-23527 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2024-23527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23527?: CVE-2024-23527 affects Ivanti Avalanche. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-23527?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-23527 have an EU (EUVD) identifier?: Yes. CVE-2024-23527 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21022.
When was CVE-2024-23527 published?: CVE-2024-23527 was published on 2024-04-25 and last updated on 2026-06-17.

References

https://www.ivanti.com/blog/security-update-for-ivanti-avalanche

Affected products (1)

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

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