What is CVE-2026-45393?

CVE-2026-45393 is a high-severity vulnerability in Cribl Edge, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-05-12.

How severe is CVE-2026-45393?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Cribl Edge

CVE-2026-45393

A vulnerability chain in Cribl Edge for Windows before 4.17.1 allows a local authenticated user to escalate privileges to NT AUTHORITY\SYSTEM. Incorrect default permissions on the Windows installer's authentication directory (CWE-276) expo…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (21.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Cribl Edge — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection
CWE-276 — Incorrect Default Permissions
CWE-20 — Improper Input Validation

References

af879a92-7297-456a-bb0e-905ac6c64bdc (release-notes)
af879a92-7297-456a-bb0e-905ac6c64bdc (vendor-advisory)

Frequently asked questions

What is CVE-2026-45393?: CVE-2026-45393 is a high-severity vulnerability in Cribl Edge, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-05-12.
How severe is CVE-2026-45393?: High severity. CVSS v3 base score is 7.8 out of 10.