What is CVE-2026-108307?

CVE-2026-108307 is a high-severity vulnerability in Tanium Index-Cx, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-10-27.

How severe is CVE-2026-108307?

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

Buffer overflow in Tanium Index-Cx

CVE-2026-108307

Tanium addressed a heap-based buffer overflow vulnerability in Index.

Vulnerability class: Buffer Overflow

Published 2026-10-27.

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tanium Index-Cx

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

3938794e-25f5-4123-a1ba-5cbd7f104512

Frequently asked questions

What is CVE-2026-108307?: CVE-2026-108307 is a high-severity vulnerability in Tanium Index-Cx, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-10-27.
How severe is CVE-2026-108307?: High severity. CVSS v3 base score is 7.8 out of 10.