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Fencer Vulns
critical 9.8

CVE-2017-12698 json

An Improper Authentication issue was discovered in Advantech WebAccess versions prior to V8.2_20170817.

published 2017-08-30 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-4237

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.8%
EPSS 4.8% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

An Improper Authentication issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Specially crafted requests allow a possible authentication bypass that could allow remote code execution.

Vendor advisories

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

cisa ICSA-17-241-02 updated cvss 7.3

Advantech WebAccess

  • Advantech WebAccess < 8.2_20170817
    affected: vendor fix

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

4.83% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • n/a Advantech WebAccess

Classification

Weakness

References

Sources

Fencer Vulns 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.