What is CVE-2026-30281?

CVE-2026-30281 is a critical-severity vulnerability in Maru Neo.maru, classified under External Control of File Name or Path. CVSS score: 9.8/10. Published 2026-03-31.

How severe is CVE-2026-30281?

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

Vulnerability in Maru Neo.maru

CVE-2026-30281

An arbitrary file overwrite vulnerability in MaruNuri LLC v2.0.23 allows attackers to overwrite critical internal files via the file import process, leading to arbitrary code execution or information exposure.

Published 2026-03-31 · last modified 2026-07-24.

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: 0.009 (56.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.009 · change: +0.002

Affected products

Maru Neo.maru — versions 2.0.23

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

secsys.fudan.edu.cn/ (Not Applicable)
maru.xyz/ (Product)
play.google.com/store/apps/details (Product)
github.com/Secsys-FDU/AF_CVEs/issues/21 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-30281?: CVE-2026-30281 is a critical-severity vulnerability in Maru Neo.maru, classified under External Control of File Name or Path. CVSS score: 9.8/10. Published 2026-03-31.
How severe is CVE-2026-30281?: Critical severity. CVSS v3 base score is 9.8 out of 10.