What is CVE-2025-69620?

CVE-2025-69620 is a medium-severity vulnerability in Ntoolslab Office Reader, classified under Path Traversal. CVSS score: 5.0/10. Published 2026-02-04.

How severe is CVE-2025-69620?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Path Traversal in Ntoolslab Office Reader

CVE-2025-69620

A path traversal in Moo Chan Song v4.5.7 allows attackers to cause a Denial of Service (DoS) via writing files to the internal storage.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-02-04 · last modified 2026-07-05.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (13.0th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.0% 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: 0.002 · change: +0.000

Affected products

Ntoolslab Office Reader — versions 4.5.7

Weakness classification (CWE)

CWE-22 — Path Traversal

References

secsys.fudan.edu.cn/ (Not Applicable)
office.com (Not Applicable)
www.ntoolslab.com/ (Product)
github.com/Secsys-FDU/AF_CVEs/issues/11 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-69620?: CVE-2025-69620 is a medium-severity vulnerability in Ntoolslab Office Reader, classified under Path Traversal. CVSS score: 5.0/10. Published 2026-02-04.
How severe is CVE-2025-69620?: Medium severity. CVSS v3 base score is 5.0 out of 10.