What is CVE-2026-5373?

CVE-2026-5373 is a high-severity vulnerability in Runzero Platform, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-04-07.

How severe is CVE-2026-5373?

High severity. CVSS v3 base score is 8.1 out of 10.

Privilege escalation in Runzero Platform

CVE-2026-5373

An issue that allowed all-organization administrators to promote accounts to superuser status has been resolved. This is an instance of CWE-269: Improper Privilege Management, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N (8.1 High). This issue was fixed in version 4.0.260202.0 of the runZero Platform.

Vulnerability class: Privilege Escalation

Published 2026-04-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (31.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Runzero Platform — versions 0
Runzero Platform

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

44488dab-36db-4358-99f9-bc116477f914 (release-notes, Release Notes)
44488dab-36db-4358-99f9-bc116477f914 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-5373?: CVE-2026-5373 is a high-severity vulnerability in Runzero Platform, classified under Improper Privilege Management. CVSS score: 8.1/10. Published 2026-04-07.
How severe is CVE-2026-5373?: High severity. CVSS v3 base score is 8.1 out of 10.