How severe is CVE-2024-24991?

CVE-2024-24991 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-24991 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-24991?

CVE-2024-24991 affects Ivanti Avalanche. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-24991?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-24991 have an EU (EUVD) identifier?

Yes. CVE-2024-24991 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-22353.

When was CVE-2024-24991 published?

CVE-2024-24991 was published on 2024-04-19 and last updated on 2026-06-17.

CVE-2024-24991

CVE-2024-24991 is a medium-severity vulnerability in Ivanti Avalanche with a CVSS 3.x base score of 6.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-22353
Weakness: CWE-476
Affected product: Ivanti Avalanche
Published: 2024-04-19
Last modified: 2026-06-17

Description

A Null Pointer Dereference vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3 allows an authenticated remote attacker to perform denial of service attacks.

Frequently asked questions

What is CVE-2024-24991?: A Null Pointer Dereference vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3 allows an authenticated remote attacker to perform denial of service attacks.
How severe is CVE-2024-24991?: CVE-2024-24991 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-24991 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-24991?: CVE-2024-24991 affects Ivanti Avalanche. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-24991?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-24991 have an EU (EUVD) identifier?: Yes. CVE-2024-24991 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-22353.
When was CVE-2024-24991 published?: CVE-2024-24991 was published on 2024-04-19 and last updated on 2026-06-17.

References

https://forums.ivanti.com/s/article/Avalanche-6-4-3-Security-Hardening-and-CVEs-addressed?language=en_US

Affected products (1)

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

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