What is CVE-2017-12702?

CVE-2017-12702 is a high-severity vulnerability in Advantech Webaccess, classified under Use of Externally-Controlled Format String. CVSS score: 8.8/10. Published 2017-08-30.

How severe is CVE-2017-12702?

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

Vulnerability in Advantech Webaccess

CVE-2017-12702

An Externally Controlled Format String issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. String format specifiers based on user provided input are not properly validated, which could allow an attacker to execute arbitrary code.

Published 2017-08-30 · 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: 0.023 (82.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Advantech Webaccess
Advantech Webaccess — versions Advantech WebAccess

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

ics-cert.us-cert.gov/advisories/ICSA-17-241-02 (US Government Resource, Third Party Advisory)
www.securityfocus.com/bid/100526 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-12702?: CVE-2017-12702 is a high-severity vulnerability in Advantech Webaccess, classified under Use of Externally-Controlled Format String. CVSS score: 8.8/10. Published 2017-08-30.
How severe is CVE-2017-12702?: High severity. CVSS v3 base score is 8.8 out of 10.