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Fencer Vulns
high 7.8

CVE-2020-16202 json

WebAccess Node (All versions prior to 9.0.1) has incorrect permissions set for resources used by specific services, which may allow code ex…

published 2020-09-22 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8168

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

WebAccess Node (All versions prior to 9.0.1) has incorrect permissions set for resources used by specific services, which may allow code execution with system privileges.

Patch / fix

  • advantech webaccess 9.0.1

Vendor advisories

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

cisa ICSA-20-261-01 updated cvss 7.8

Advantech WebAccess Node

  • Advantech WebAccess Node < 9.0.1
    affected: mitigation “Advantech has released update 9.0.1 to mitigate this vulnerability.” support.advantech.com

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

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • n/a WebAccess Node

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

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.