CVE-2024-8036

Device takeover via engineering-tool-only update verification

Published Oct 25, 2024 · Updated Oct 30, 2024

Improper signature verification in affected ABB substation products allows adjacent authenticated users to take control via crafted updates. Each product accepts firmware or configuration without independently checking authenticity and integrity, relying solely on verification by the engineering tool. Exploitation requires high privileges and user participation, and can also stop the node or render it inaccessible.

CVSS severity5.9
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in affected ABB substation products allows adjacent authenticated users to take control via crafted updates. Each product accepts firmware or configuration without independently checking authenticity and integrity, relying solely on verification by the engineering tool. Exploitation requires high privileges and user participation, and can also stop the node or render it inaccessible.

The record

CVE
CVE-2024-8036
Published
Oct 25, 2024
Updated
Oct 30, 2024
Vendor
GENEREX SYSTEMS Computervertriebsgesellschaft mbH
Product
SPA ZC-402
Classifications
CWE-347, T1495
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Oct 25, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Exxx
  2. Affected versionversion=Mxxx
  3. Affected versionversion=Sxxx
  4. Affected versionversion=xMxx
  5. Affected versionversion=xxxC

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

GENEREX SYSTEMS Computervertriebsgesellschaft mbH · SPA ZC-402version=Exxx; version=Mxxx; version=Sxxx; version=xMxx; version=xxxC
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RED615 IECversion=1.0.0 <=1.1.5
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RER620 ANSIversion=1.0.0 <=1.3
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · Relion 620 Seriesversion=2.0.0 <=2.0.13; version=2.1.0 <=2.1.16
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RIO600version=1.0.0 <=1.8.8
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · COM600version=3.3; version=3.4; version=3.5; version=4.0; version=4.1; version=5.0; version=5.1
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REC615version=1.0.0 <=1.1.4; version=2.0.0 <=2.0.9
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · Relion 615 Series IECversion=2.0.0 <=2.0.9; version=3.0.0 <=3.0.10; version=4.0.0 <=4.0.8; version=4.1.9 <=4.1.10; version=5.0.0 <=5.0.17; version=5.1.0 <=5.1.24
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REF615 ANSIversion=1.0.0 <=1.1.0
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · SMU615version=1.0.0 <=1.0.3
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · Smart Substation Control and Protection SSC600version=1.0; version=1.0 FP1; version=1.0 FP2; version=1.0 FP3; version=1.0 FP4
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REF615R ANSIversion=4.0.0 <=4.1.2
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · ARM600version=4.x.x <=5.0.3
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RE_611 IECversion=1.0.0 <=1.0.4; version=2.0.0 <=2.0.4
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · SPA ZC-400version=Exx; version=Exxx; version=Mxx; version=Mxxx; version=Sxx; version=Sxxx; version=xMx; version=xMxx; version=xxxC
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · SUE 3000version=2.6 V4F07x; version=3.0FP1 V4F11x; version=V4D02x; version=V4E0xx
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REF542plusversion=R1.0; version=R1.1; version=R2.0; version=R2.5; version=R2.5 ATEX; version=R2.5 SP3; version=R2.6; version=R3.0; version=R3.0 SP1; version=R3.0 SP3
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REF615 IECversion=1.0.0 <=1.2.0
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REX615version=PCL1
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · COM600F ANSIversion=4.1; version=5.0
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RBX615version=1.0.0 <=2.0.0
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · Relion 615 Series CNversion=2.0.0 <=2.0.9; version=3.0.0 <=3..0.7; version=3.1.0 <=3.1.10; version=4.1.0 <=4.1.9; version=5.1.0 <=5.1.4
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · Relion 615 Series ANSIversion=2.0.0 <=2.0.9; version=4.0.0 <=4.0.5; version=4.1.0 <=4.1.1; version=4.2.0 <=4.2.3; version=5.1.0 <=5.1.3
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RER615version=1.0.0 <=1.1.4; version=2.0.0 <=2.0.9
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · RE_630version=1.1.0 <=1.1.0 C5; version=1.2.0 <=1.2.0 B8; version=1.3.0 <=1.3.0 B1
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REX610version=1.1.1; version=1.2.0
GENEREX SYSTEMS Computervertriebsgesellschaft mbH · REX640version=1.0.0 <=1.0.8; version=1.1.0 <=1.1.6; version=1.2.0 <=1.2.3; version=1.3.0 <=1.3.4

Published CVSS scores

4.6ABBCVSS:4.0/AV:A/AC:H/AT:P/PR:H/UI:P/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/S:P/AU:N/R:I/V:D/RE:H/U:Amber
5.9ABBCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:H
5.4ABBCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:L/I:H/A:H/E:P/RL:W/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
T1495Firmware Corruption

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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