Advantech WebAccess Stack-based Buffer Overflow

published 2014-04-12 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-0797

cvss: 7.5; version 2.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.7%; EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

An attacker can exploit this vulnerability by copying an overly long NodeName2 argument into a statically sized buffer on the stack to overflow the static stack buffer. An attacker may use this vulnerability to remotely execute arbitrary code.

Patch / fix

fixed in 1

Advantech WebAccess 7.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-14-079-03 updated 2025-06-09 cvss 7.5

Advantech WebAccess Vulnerabilities

Advantech WebAccess <=7.1
affected: mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.67% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

Advantech WebAccess

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

cisa.gov /news-events/ics-advisories/icsa-14-079-03
securityfocus.com /bid/66740
vdb-entry
webaccess.advantech.com /
ics-cert.us-cert.gov /advisories/ICSA-14-079-03
third-party-advisory, us-government-resource
securityfocus.com /bid/66725
vdb-entry

Sources

CVE List CVE-2014-0766
NVD CVE-2014-0766

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary