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CVE-2021-22283

MMS File Transfer Vulnerability impact on Distribution Automation products

MEDIUM
5.5
CVSS Score
Published: February 28, 2023 at 04:21 AM UTC
Updated: June 17, 2026 at 03:36 AM UTC
38 products affected across 1 vendorREX640 PCL2 FirmwareREX640 PCL1 FirmwareREX640 PCL3 Firmware

Using Relion protection relays - 611 series by ABB?

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Improper Initialization vulnerability in ABB Relion protection relays - 611 series, ABB Relion protection relays - 615 series IEC 4.0 FP1, ABB Relion protection relays - 615 series CN 4.0 FP1, ABB Relion protection relays - 615 series IEC 5.0, ABB Relion protection relays - 615 series IEC 5.0 FP1, ABB Relion protection relays - 620 series IEC/CN 2.0, ABB Relion protection relays - 620 series IEC/CN 2.0 FP1, ABB Relion protection relays - REX640 PCL1, ABB Relion protection relays - REX640 PCL2, ABB Relion protection relays - REX640 PCL3, ABB Relion protection relays - RER615, ABB Remote Monitoring and Control - REC615, ABB Merging Unit- SMU615 allows Communication Channel Manipulation.This issue affects Relion protection relays - 611 series: from 1.0.0 before 2.0.3; Relion protection relays - 615 series IEC 4.0 FP1: from 4.1.0 before 4.1.9; Relion protection relays - 615 series CN 4.0 FP1: from 4.1.0 before 4.1.8; Relion protection relays - 615 series IEC 5.0: from 5.0.0 before 5.0.12; Relion protection relays - 615 series IEC 5.0 FP1: from 5.1.0 before 5.1.20; Relion protection relays - 620 series IEC/CN 2.0: from 2.0.0 before 2.0.11; Relion protection relays - 620 series IEC/CN 2.0 FP1: from 2.1.0 before 2.1.15; Relion protection relays - REX640 PCL1: from 1.0.0 before 1.0.8; Relion protection relays - REX640 PCL2: from 1.1.0 before 1.1.4; Relion protection relays - REX640 PCL3: from 1.2.0 before 1.2.1; Relion protection relays - RER615: from 2.0.0 before 2.0.3; Remote Monitoring and Control - REC615: from 1.0.0 before 2.0.3; Merging Unit- SMU615: from 1.0.0 before 1.0.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

EVD4 Firmware· ABB
95%
All versions
abb-evd4 (same device)
REC615 Firmware· ABB
95%
v < 2.0.3
Affected range stops below 2.0.3, so it looks safe — our inference, not a vendor statement
abb-rec615 (same device)
RED615 Iec Firmware· ABB
95%
All versions
abb-red615-iec (same device)
REF615 Ansi Firmware· ABB
95%
All versions
abb-ref615-ansi (same device)
REF615 Iec Firmware· ABB
95%
All versions
abb-ref615-iec (same device)
REF615R Firmware· ABB
95%
All versions
abb-ref615r (same device)
Relion 611 Firmware· ABB
95%
v < 2.0.3
Affected range stops below 2.0.3, so it looks safe — our inference, not a vendor statement
abb-relion-611 (same device)
Relion 615 Ansi Firmware· ABB
95%
All versions
abb-relion-615-ansi (same device)
Relion 615 Cn Firmware· ABB
95%
v < 4.1.8
Affected range stops below 4.1.8, so it looks safe — our inference, not a vendor statement
abb-relion-615-cn (same device)
Relion 615 Iec Firmware· ABB
95%
v < 4.1.9v < 5.0.12v < 5.1.20
Affected range stops below 4.1.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.0.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.1.20, so it looks safe — our inference, not a vendor statement
abb-relion-615-iec (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://search.abb.com/library/Download.aspx?DocumentID=2NGA001147&LanguageCode=en&DocumentPartId=&Action=Launch

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-665

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