What is CVE-2026-5965?

CVE-2026-5965 is a critical-severity vulnerability in Newsoft Newsoftoa, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-21.

How severe is CVE-2026-5965?

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

RCE in Newsoft Newsoftoa

CVE-2026-5965

NewSoftOA developed by NewSoft has an OS Command Injection vulnerability, allowing unauthenticated local attackers to inject arbitrary OS commands and execute them on the server.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-04-21 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.026 (84.8th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.026 · change: +0.009

Affected products

Newsoft Newsoftoa — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.twcert.org.tw/tw/cp-132-10856-4979f-1.html (third-party-advisory)
www.twcert.org.tw/en/cp-139-10857-c46f7-2.html (third-party-advisory)

Frequently asked questions

What is CVE-2026-5965?: CVE-2026-5965 is a critical-severity vulnerability in Newsoft Newsoftoa, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-04-21.
How severe is CVE-2026-5965?: Critical severity. CVSS v3 base score is 9.8 out of 10.