What is CVE-2015-6458?

CVE-2015-6458 is a high-severity vulnerability in Moxa Softcms, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2019-03-21.

How severe is CVE-2015-6458?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Moxa Softcms

CVE-2015-6458

Moxa SoftCMS 1.3 and prior is susceptible to a buffer overflow condition that may crash or allow remote code execution. Moxa released SoftCMS version 1.4 on June 1, 2015, to address the vulnerability.

Vulnerability class: Buffer Overflow

Published 2019-03-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (85.9th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Moxa Softcms — versions <= 1.3

Weakness classification (CWE)

References

ics-cert.us-cert.gov/advisories/ICSA-15-239-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2015-6458?: CVE-2015-6458 is a high-severity vulnerability in Moxa Softcms, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2019-03-21.
How severe is CVE-2015-6458?: High severity. CVSS v3 base score is 8.8 out of 10.