What is CVE-2024-27978?

CVE-2024-27978 is a medium-severity vulnerability in Ivanti Avalanche, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2024-04-19.

How severe is CVE-2024-27978?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Ivanti Avalanche

CVE-2024-27978

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.

Published 2024-04-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Ivanti Avalanche — versions 6.4.3

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

forums.ivanti.com/s/article/Avalanche-6-4-3-Security-Hardening-and-CVEs-address… (Vendor Advisory)

Frequently asked questions

What is CVE-2024-27978?: CVE-2024-27978 is a medium-severity vulnerability in Ivanti Avalanche, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2024-04-19.
How severe is CVE-2024-27978?: Medium severity. CVSS v3 base score is 6.5 out of 10.