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Fencer Vulns
high 7.5

CVE-2021-42797 json

Path traversal vulnerability in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior allows an unauthenticated user to steal…

published 2023-12-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2021-29753

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

Path traversal vulnerability in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior allows an unauthenticated user to steal the Windows access token of the user account configured for accessing external DB resources.

Patch / fix

  • aveva edge 2020

Vendor advisories

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

cisa ICSA-22-326-01 updated cvss 8.6

AVEVA Edge

  • AVEVA Software, LLC AVEVA Edge 2020 R2 SP1, R2 SP1 w/ HF 2020.2.00.40, <= R2 (formerly known as InduSoft Web Studio)
    affected: mitigation “AVEVA recommends organizations evaluate the impact of these vulnerabilities based on operational environment, architecture, and product implementations.” softwaresupportsp.aveva.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

1.00% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

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.