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CVE-2017-12704

25
FAUCET Score

CVE-2017-12704 is a critical heap-based buffer overflow vulnerability affecting Advantech WebAccess versions prior to V8.2_20170817. This flaw stems from insufficient validation of user-supplied data lengths, enabling an unauthenticated attacker to execute arbitrary code remotely. With a CVSS score of 8.8 (High), successful exploitation could lead to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.2CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.60%
Probability of exploitation in next 30 days
EPSS Percentile
83.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0260 is in the 83rd percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-17-241-02
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/100526
Third Party AdvisoryVDB Entry