What is CVE-2023-46263?

CVE-2023-46263 is a critical-severity vulnerability in Ivanti Avalanche, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-12-19.

How severe is CVE-2023-46263?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Ivanti Avalanche

CVE-2023-46263

An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.4.1 and below that could allow an attacker to achieve a remote code execution.

Vulnerability class: Unrestricted File Upload

EPSS: 0.819 (99.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ivanti Avalanche — versions 6.4.1
Microsoft Windows

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

support@hackerone.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2023-46263?: CVE-2023-46263 is a critical-severity vulnerability in Ivanti Avalanche, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-12-19.
How severe is CVE-2023-46263?: Critical severity. CVSS v3 base score is 9.8 out of 10.