A heap-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817.

Published 9 y ago 2017-08-30 · modified 4 mo ago 2026-06-17 · JSON

CVSS

8.8

v3.0 · NVD

CISA KEV

not known exploited

EPSS

2.6%

percentile 85%

Public exploits

none known

A heap-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to the heap-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.

Exploit prediction (EPSS)

2.60% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	8.8	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
NVD	2.0	6.8	`AV:N/AC:M/Au:N/C:P/I:P/A:P`

Affected products

n/a Advantech WebAccess

Classification

Weakness

CWE-122 Heap-based Buffer Overflow
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

ics-cert.us-cert.gov /advisories/ICSA-17-241-02 · x_refsource_MISC, x_transferred
securityfocus.com /bid/100526 · vdb-entry, x_refsource_BID, x_transferred

Sources

CVE List: CVE-2017-12704
NVD: CVE-2017-12704

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.