CVE-2021-42797

Name: CVE-2021-42797
Creator: NVD / NIST
Published: 2023-12-16T01:15:07.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2021-42797 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.00%

58.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Aveva	Edge	< 2020
Aveva	Edge	2020

References

https://www.aveva.com/en/products/edge/Product
https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01Third Party Advisory, US Government Resource
https://www.aveva.com/en/products/edge/Product
https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01Third Party Advisory, US Government Resource

Timeline

Published: Dec 16, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42797?

How severe is CVE-2021-42797?

CVE-2021-42797 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42797?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-42797?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST