CVE-2024-3036

Service crashes via malformed CSLib messages

Published Jun 21, 2024 · Updated Sep 11, 2025

Improper input validation in ABB 800xA Base 6.0.0 through 6.1.1-2 allows remote authenticated users to crash services via crafted messages. The CSLib communication path accepts specifically crafted messages without sufficient input validation, but ABB has not disclosed the affected message field or validation operation. Reachability requires adjacent-network access and low privileges; successful exploitation interrupts affected services without reported data disclosure or modification.

CVSS severity6.9
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in ABB 800xA Base 6.0.0 through 6.1.1-2 allows remote authenticated users to crash services via crafted messages. The CSLib communication path accepts specifically crafted messages without sufficient input validation, but ABB has not disclosed the affected message field or validation operation. Reachability requires adjacent-network access and low privileges; successful exploitation interrupts affected services without reported data disclosure or modification.

The record

CVE
CVE-2024-3036
Published
Jun 21, 2024
Updated
Sep 11, 2025
Vendor
GENEREX SYSTEMS Computervertriebsgesellschaft mbH
Product
800xA Base System
Classifications
CWE-1284, T1499
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=6.0.0 <=6.1.1-2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

GENEREX SYSTEMS Computervertriebsgesellschaft mbH · 800xA Base Systemversion=6.0.0 <=6.1.1-2

Published CVSS scores

6.9ABBCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/S:N/AU:Y/R:A/V:D/RE:M
5.7ABBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.1ABBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
T1499Endpoint Denial of Service

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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