CVE-2020-7561

highpriority · track · 40OT risk · elevatedEPSS 0.032 · 88 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
3.16% (88th) EPSS
CVSS 7.5 · high
Is it mine?
5 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T300 (with firmware 2.7 and older) that could cause a wide range of problems, including information exposure, denial of service, and command execution when access to a resource from an attacker is not restricted or incorrectly restricted.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationEasergy T300 with firmwarecisa_csaf_ot

    Install physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.

02

cvss

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

10.0
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.010criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:Hsecondary · CISA US
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-284USCWE-306USCWE-306US
04

affected products (5)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-20-343-03Schneider Electric Easergy T3002020-12-08icsa · cisa_csaf_otUS

    Successful exploitation of this vulnerability could allow an attacker to obtain unauthorized access to the internal product LAN, which could result in exposure of sensitive information, denial of service, and remote code execution when access to a resource from an attacker is not restricted or incorrectly restricted.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnvdNVDCVE.orgMITRE
published 2020-11-19modified 2026-06-17
08

references (8)

External citations — patches, advisories, analysis.

scry

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