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CVE-2018-8841

23
FAUCET Score

CVE-2018-8841 is an improper privilege management vulnerability affecting multiple Advantech WebAccess products, including versions V8.2 and prior, V8.3.0 and prior, WebAccess Dashboard V.2.0.15 and prior, WebAccess Scada Node prior to 8.3.1, and WebAccess/NMS 2.0.3 and prior. This flaw allows an authenticated user with read access to modify files, leading to a high-severity CVSS score of 7.8. The vulnerability has a low attack complexity and requires local access and low privileges, but can result in high impacts to confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 8.2_20170817CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*
<= 8.3.0CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*
<= 2.0.15CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess_dashboard:*:*:*:*:*:*:*:*
< 8.3.1CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess_scada:*:*:*:*:*:*:*:*
<= 2.0.3CPE matchmatch criteria
cpe:2.3:a:advantech:webaccess\/nms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 67th percentile among its peer group of 16,985 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 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-18-135-01
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/104190
Third Party AdvisoryVDB Entry