CVE-2020-7520

mediumpriority · track · 19EPSS 0.009 · 61 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.93% (61st) EPSS

CVSS 4 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

A CWE-601: URL Redirection to Untrusted Site ('Open Redirect') vulnerability exists in Schneider Electric Software Update (SESU), V2.4.0 and prior, which could cause execution of malicious code on the victim's machine. In order to exploit this vulnerability, an attacker requires privileged access on the engineering workstation to modify a Windows registry key which would divert all traffic updates to go through a server in the attacker's possession. A man-in-the-middle attack is then used to complete the exploit.

cvss

Technical severity, 0–10. One row per scoring source.

7.9

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4–7.9

v2.04mediumAV:N/AC:H/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 4.9 · impact 4.9

v3.14.7mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 1.6 · impact 2.7

v3.17.9highAV:N/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.14.3mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-601USprimaryCWE-601US

affected products (3)

Products and version ranges known to be affected.

n/a Schneider Electric Software Update (SESU) V2.4.0 and prior.≤ Schneider Electric Software Update (SESU) V2.4.0 and prior.enisa_euvdEU
Schneider Electric Schneider Electric Software Update≤ 2.5.0fstec_bduRU
schneider-electric software update utility≤ 2.4.0nvdUScpe:2.3:a:schneider-electric:software_update_utility:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-07-23modified 2026-06-17

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references (4)

External citations — patches, advisories, analysis.

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