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CVE-2018-18999

25
FAUCET Score

CVE-2018-18999 is a buffer overflow vulnerability in Advantech WebAccess/SCADA version 8.3.2 running on Windows 2008 R2 SP1, stemming from insufficient input validation. This high-severity vulnerability (CVSS 7.3) can be exploited remotely without authentication, potentially leading to low impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, organizations using affected products should still consider patching.

Impacted Technologies

VendorProductVersion(s)CPE
8.3.2CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess\/scada:8.3.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 67th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (3)

dogukanurkervendor investigatingvia llm_extracted
posthogvendor investigatingvia llm_extracted
qlikvendor investigatingvia llm_extracted

Vendor Advisories (3)

dogukanurkerllm-dogukanurker-367b39477a37babeCRITICAL

[R2] Advantech WebAccess Stack Buffer Overflow

Dec 14, 2018
qlikllm-qlik-5d4ac718fc4fd5eeCRITICAL

[R2] Advantech WebAccess Stack Buffer Overflow

Dec 14, 2018
posthogllm-posthog-e54eafb672205131CRITICAL

[R2] Advantech WebAccess Stack Buffer Overflow

Dec 14, 2018

References

ics-cert.us-cert.gov / advisories/ICSA-18-352-02
Third Party AdvisoryUS Government Resource
tenable.com / security/research/tra-2018-45
Third Party Advisory
securityfocus.com / bid/106245
Third Party AdvisoryVDB Entry